机械制图(专科)-作业二
1.[单选题] 两等直径的圆柱轴线垂直相交时，相贯线是 ( )
奥鹏作业答案可以联系Q
A.空间曲线
B.椭圆
C.圆
D.直线
正确答案:——B——
2.[单选题] 圆柱倒角尺寸的正确注法是( )。
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204150451_462.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145633_705.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145328_77.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144657_604.png" alt="" /
正确答案:——B——
3.[单选题] 两圆柱轴线平行相贯，其柱面的相贯线是( )。
A.空间曲线
B.椭圆
C.直线段
D.圆
正确答案:——C——
4.[单选题] 尺寸数字水平方向注写在尺寸线的上方，垂直方向上的数字注写在尺寸线的（ ）。
A.左方
B.右方
C.随意那一方
D.中间
正确答案:————
5.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman""若轴的尺寸为</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1028" type="#_x0000_t75" style='width:40.8pt;height:18pt' o
le="" <v:imagedata src="JXZTDX(1).files/image186.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="54" height="24" v:shapes="_x0000_i1028" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image187.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1028" DrawAspect="Content" ObjectID="_1633350180" </o:OLEObject </xml<![endif]--,</span<span style="mso-bidi-font-size:10.5pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman""在实际生产中，合格的尺寸是</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt"(<span style="mso-spacerun:yes" </span)</span<span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman""。</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt; mso-font-kerning:0pt" <o:p</o:p</span
A.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1029" type="#_x0000_t75" style='width:10.8pt;height:16.2pt' ole="" <v:imagedata src="JXZTDX(1).files/image188.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="14" height="22" v:shapes="_x0000_i1029" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image189.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1029" DrawAspect="Content" ObjectID="_1633350181" </o:OLEObject </xml<![endif]--40<span style="mso-font-kerning:0pt" <o:p</o:p</span</span
B.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1030" type="#_x0000_t75" style='width:10.8pt;height:16.2pt' ole="" <v:imagedata src="JXZTDX(1).files/image190.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="14" height="22" v:shapes="_x0000_i1030" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image189.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1030" DrawAspect="Content" ObjectID="_1633350182" </o:OLEObject </xml<![endif]--39.985<span style="mso-font-kerning:0pt" <o:p</o:p</span</span
C.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1031" type="#_x0000_t75" style='width:9pt;height:16.2pt' ole="" <v:imagedata src="JXZTDX(1).files/image191.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="12" height="22" v:shapes="_x0000_i1031" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image192.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1031" DrawAspect="Content" ObjectID="_1633350183" </o:OLEObject </xml<![endif]--39.965<span style="mso-font-kerning:0pt" <o:p</o:p</span</span
D.<p class="MsoNormal" style="tab-stops:102.95pt 178.95pt 248.95pt" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1032" type="#_x0000_t75" style='width:10.8pt;height:16.2pt' ole="" <v:imagedata src="JXZTDX(1).files/image193.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="14" height="22" v:shapes="_x0000_i1032" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image189.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1032" DrawAspect="Content" ObjectID="_1633350184" </o:OLEObject </xml<![endif]--39.945 <o:p</o:p</span
正确答案:————
6.[单选题] 关于局部视图说法不正确的是 ( )
A.局部视图是将局部结构向基本投影面投影得到的
B.标注方法和向视图类似
C.必须标注
D.表达封闭的、独立的、完整的局部结构时，波浪线可以省略
正确答案:————
7.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"判断下列平面内直线的空间位置，指出下列说法哪种正确。</span<span(<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104159_229.png" alt="" /
A. AB是正平线
B. AB是铅垂线BC是正平线
C. AB是铅垂线
D. AB是水平线
正确答案:————
8.[单选题] 断面图的种类分为几种 ( )
A.1种
B.2种
C.3种
D.4种
正确答案:————
9.[单选题] 组合体画法正确的是 ( )
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204162655_575.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204161633_907.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204161654_811.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204162354_777.png" alt="" /
正确答案:————
10.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"关于三角形</span<spanABC</span<span style="font-family:Microsoft Yahei;"与投影面的位置关系，正确的是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104915_915.png" alt="" /
A. 一般位置平面
B. 正平面
C. 侧垂面
D. 水平面
正确答案:————
11.[单选题] 当截平面截切圆球时，截交线形状为：
A.圆
B.椭圆
C.抛物线
D.双曲线
正确答案:————
12.[单选题] 我国国标规定，表示轴线、对称中心线采用（ ）线型。
A.粗实线
B.细实线
C.虚线
D.细点画线
正确答案:————
13.[单选题] ( )是用来量取线段和分割线段的工具。
A.圆规
B.分规
C.比例尺
D.三角板
正确答案:————
14.[单选题] 同一图样中，同类图线的宽度应基本一致，( )、点画线及双点画线的线段长度和间隔应各自大致相等。
A.虚线
B.直线
C.双折线
D.细实线 奥鹏作业答案q761 296021
正确答案:————
15.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"以下关于点</span<spanA</span<span style="font-family:Microsoft Yahei;"与</span<spanB</span<span style="font-family:Microsoft Yahei;"的相对位置关系，哪个描述是正确的</span<span? (<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204125758_120.png" alt="" /
A. A点在B点的左面
B. A点在B点的下面
C. A点在B点的前面
D. A点在B点的后面
正确答案:————
16.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"根据水平投影和侧面投影，选择正确的正面投影。</span<span(<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204114538_610.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115234_132.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204114601_589.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115656_58.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115310_125.png" alt="" /
正确答案:————
17.[单选题] 我国国标规定，汉字应写成（ ）体，并应采用国家正式公布的简化字。
A.楷
B.宋
C.任意
D.长仿宋
正确答案:————
18.[单选题] 下图中表面粗糙度代号标注正确的是( )。
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164632_621.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164644_617.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163431_398.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163440_533.png" alt="" /
正确答案:————
19.[单选题] 在圆柱面上所作的直线一定与圆柱轴线（ ）。
A.平行
B.相交
C.异面
D.垂直
正确答案:————
20.[单选题] 关于基本视图和向视图说法不正确的是 ( )
A.基本视图和向视图都是向基本投影面投影得到的
B.基本视图一般不需要标注，向视图则需要标注
C.基本视图和向视图都必须标注
D.标注向视图需要同时标注投影方向(箭头)和视图名称(大写字母)
正确答案:————
21.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下列水平投影正确的是（</span<span<span </span</span<span style="font-family:Microsoft Yahei;"）。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104756_196.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105536_763.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105941_619.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105558_990.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104924_407.png" alt="" /
正确答案:————
22.[单选题] 装配图表达中规定：两个非接触的表面应画成( )。
A.一条线
B.两条线
C.三条线
D.四条线
正确答案:————
23.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下图中，点</span<spanB</span<span style="font-family:Microsoft Yahei;"是（</span<span<span </span</span<span style="font-family:Microsoft Yahei;"），取点方法是（</span<span<span </span</span<span style="font-family:Microsoft Yahei;"）。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204151630_448.png" alt="" /
A. 一般点，素线法
B. 一般点，纬圆法
C. 特殊点，素线法
D. 特殊点，纬圆法
正确答案:————
24.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知组合体的主视图和俯视图，左视图是</span<span (<span </span)</span<span style="font-family:Microsoft Yahei;"。</span
<p class="MsoNormal" <span style="font-family:Microsoft Yahei;"<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143635_131.png" alt="" /<br /</span
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144518_329.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143705_226.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143718_307.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142647_878.png" alt="" /
正确答案:————
25.[单选题] 形体的投影规律“长对正、高平齐、宽相等” ( )。
A.对整体不适用、局部适用
B.对整体、局部都适用
C.对整体、局部都不适用
D.对整体适用、局部不适用
正确答案:————
26.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知组合体的主视图和左视图，俯视图是</span<span (<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170122_557.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165052_174.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165752_906.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165114_318.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165132_700.png" alt="" /
正确答案:————
27.[单选题] <p class="MsoNormal" style="margin-left:8.0pt;" <span style="font-family:Microsoft Yahei;"下图为组合体的主、俯视图，该组合体形体的左视图是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span
<p class="MsoNormal" style="margin-left:8.0pt;" <span style="font-family:Microsoft Yahei;"<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144034_409.png" alt="" /<br /</span
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144735_811.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145142_807.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144115_656.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144812_985.png" alt="" /
正确答案:————
28.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知主、俯视图，正确的左视图是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165041_662.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164409_206.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170331_700.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164435_262.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164444_428.png" alt="" /
正确答案:————
29.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下图为组合体的俯视图，主视图正确的全剖视图是</span<span (<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204134630_876.png" alt="" /
A.<p class="MsoNormal" style="display:inline;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204134649_832.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133553_458.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133611_491.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133625_718.png" alt="" /
正确答案:————
30.[单选题] 垂直于H面的平面称为( )。
A.正垂面
B.铅垂面
C.水平面
D.一般面
正确答案:————
31.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下图所示为五棱柱的主俯视图，其中投影关系正确的是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <span style="font-family:Microsoft Yahei;"<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142815_653.png" alt="" /<br /</span
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142432_122.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142445_436.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142853_803.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204141825_381.png" alt="" /
正确答案:————
32.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知主视图和俯视图，正确左视图是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163044_637.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163745_39.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163757_396.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163123_88.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163819_168.png" alt="" /
正确答案:————
33.[单选题] 组合体画法正确的是 ( )
A.<p class="MsoNormal" style="display:inline;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170618_328.png" alt="" /
B.<p class="MsoNormal" style="display:inline;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171028_490.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171122_467.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170743_516.png" alt="" /
正确答案:————
34.[单选题] <p class="MsoBodyText" style="margin-left:8.0pt;" <span style="font-size:10.5pt;"下面平面是</span<span style="font-size:10.5pt;font-family:""(<span </span)</span<span style="font-size:10.5pt;"。</span<span style="font-size:10.5pt;font-family:"" </span
<p class="MsoBodyText" style="margin-left:8.0pt;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204120102_115.png" alt="" /
A. 水平面
B. 正平面
C. 侧平面
D. 一般位置平面
正确答案:————
35.[单选题] 当圆柱体的轴线垂直于水平面时，圆柱面的水平投影具有 ，其形状是 。（ ）
A.积聚性，矩形
B.积聚性，圆
C.实形性，矩形
D.实形性，圆
正确答案:————
36.[单选题] 一线段的正投影长度( )。
A.一定小于该线段的实长
B.可能大于该线段的实长
C.一定等于该线段的实长
D.可以小于或等于该线段的实长
正确答案:————
37.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"组合体左视图画法正确的是</span<span (<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145106_903.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144257_218.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143228_903.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143239_382.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145204_617.png" alt="" /
正确答案:————
38.[单选题] 用纬圆法求圆锥表面上的点时，纬圆的直径大小与纬圆的圆心到锥顶的距离( )。
A.成正比
B.成反比
C.相等
D.没有关系
正确答案:————
39.[单选题] 装配图中每一种零件在视图上( )。
A.只编一个序号
B.编二个序号
C.最多编三个序号
D.每个视图均需编号
正确答案:————
40.[单选题] 已知双线螺纹，螺距为1，则它的导程为( )。
A.1
B.2
C.3
D.4
正确答案:————
，附件是答案，请
1.[单选题] 两等直径的圆柱轴线垂直相交时，相贯线是 ( )
奥鹏作业答案可以联系Q
A.空间曲线
B.椭圆
C.圆
D.直线
正确答案:——B——
2.[单选题] 圆柱倒角尺寸的正确注法是( )。
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204150451_462.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145633_705.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145328_77.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144657_604.png" alt="" /
正确答案:——B——
3.[单选题] 两圆柱轴线平行相贯，其柱面的相贯线是( )。
A.空间曲线
B.椭圆
C.直线段
D.圆
正确答案:——C——
4.[单选题] 尺寸数字水平方向注写在尺寸线的上方，垂直方向上的数字注写在尺寸线的（ ）。
A.左方
B.右方
C.随意那一方
D.中间
正确答案:————
5.[单选题] <p class="MsoNormal" style="mso-pagination:widow-orphan"<span style="mso-bidi-font-size:10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman"; mso-hansi-font-family:"Times New Roman""若轴的尺寸为</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1028" type="#_x0000_t75" style='width:40.8pt;height:18pt' o
le="" <v:imagedata src="JXZTDX(1).files/image186.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="54" height="24" v:shapes="_x0000_i1028" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image187.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1028" DrawAspect="Content" ObjectID="_1633350180" </o:OLEObject </xml<![endif]--,</span<span style="mso-bidi-font-size:10.5pt;font-family: 宋体;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family:"Times New Roman""在实际生产中，合格的尺寸是</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt"(<span style="mso-spacerun:yes" </span)</span<span style="mso-bidi-font-size: 10.5pt;font-family:Microsoft Yahei;mso-ascii-font-family:"Times New Roman";mso-hansi-font-family: "Times New Roman""。</span<span lang="EN-US" style="mso-bidi-font-size:10.5pt; mso-font-kerning:0pt" <o:p</o:p</spanA.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1029" type="#_x0000_t75" style='width:10.8pt;height:16.2pt' o
le="" <v:imagedata src="JXZTDX(1).files/image188.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="14" height="22" v:shapes="_x0000_i1029" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image189.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1029" DrawAspect="Content" ObjectID="_1633350181" </o:OLEObject </xml<![endif]--40<span style="mso-font-kerning:0pt" <o:p</o:p</span</spanB.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1030" type="#_x0000_t75" style='width:10.8pt;height:16.2pt' o
le="" <v:imagedata src="JXZTDX(1).files/image190.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="14" height="22" v:shapes="_x0000_i1030" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image189.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1030" DrawAspect="Content" ObjectID="_1633350182" </o:OLEObject </xml<![endif]--39.985<span style="mso-font-kerning:0pt" <o:p</o:p</span</spanC.<p class="MsoNormal" style="mso-pagination:widow-orphan" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1031" type="#_x0000_t75" style='width:9pt;height:16.2pt' o
le="" <v:imagedata src="JXZTDX(1).files/image191.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="12" height="22" v:shapes="_x0000_i1031" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image192.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1031" DrawAspect="Content" ObjectID="_1633350183" </o:OLEObject </xml<![endif]--39.965<span style="mso-font-kerning:0pt" <o:p</o:p</span</spanD.<p class="MsoNormal" style="tab-stops:102.95pt 178.95pt 248.95pt" style="display:inline;"<span lang="EN-US" style="mso-bidi-font-size:10.5pt" <!--[if gte vml 1]<v:shape id="_x0000_i1032" type="#_x0000_t75" style='width:10.8pt;height:16.2pt' o
le="" <v:imagedata src="JXZTDX(1).files/image193.wmz" o:title=""/ </v:shape<![endif]-- <!--[if !vml]--<img width="14" height="22" v:shapes="_x0000_i1032" src="http://wljy.whut.edu.cn:80/uploadfiles/word/JXZTDX(1).files/image189.png" <!--[endif]-- <!--[if gte mso 9]<xml <o:OLEObject Type="Embed" ProgID="Equation.3" ShapeID="_x0000_i1032" DrawAspect="Content" ObjectID="_1633350184" </o:OLEObject </xml<![endif]--39.945 <o:p</o:p</span正确答案:————
6.[单选题] 关于局部视图说法不正确的是 ( )
A.局部视图是将局部结构向基本投影面投影得到的
B.标注方法和向视图类似
C.必须标注
D.表达封闭的、独立的、完整的局部结构时，波浪线可以省略
正确答案:————
7.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"判断下列平面内直线的空间位置，指出下列说法哪种正确。</span<span(<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104159_229.png" alt="" /
A. AB是正平线
B. AB是铅垂线BC是正平线
C. AB是铅垂线
D. AB是水平线
正确答案:————
8.[单选题] 断面图的种类分为几种 ( )
A.1种
B.2种
C.3种
D.4种
正确答案:————
9.[单选题] 组合体画法正确的是 ( )
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204162655_575.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204161633_907.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204161654_811.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204162354_777.png" alt="" /
正确答案:————
10.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"关于三角形</span<spanABC</span<span style="font-family:Microsoft Yahei;"与投影面的位置关系，正确的是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104915_915.png" alt="" /
A. 一般位置平面
B. 正平面
C. 侧垂面
D. 水平面
正确答案:————
11.[单选题] 当截平面截切圆球时，截交线形状为：
A.圆
B.椭圆
C.抛物线
D.双曲线
正确答案:————
12.[单选题] 我国国标规定，表示轴线、对称中心线采用（ ）线型。
A.粗实线
B.细实线
C.虚线
D.细点画线
正确答案:————
13.[单选题] ( )是用来量取线段和分割线段的工具。
A.圆规
B.分规
C.比例尺
D.三角板
正确答案:————
14.[单选题] 同一图样中，同类图线的宽度应基本一致，( )、点画线及双点画线的线段长度和间隔应各自大致相等。
A.虚线
B.直线
C.双折线
D.细实线 奥鹏作业答案q761 296021
正确答案:————
15.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"以下关于点</span<spanA</span<span style="font-family:Microsoft Yahei;"与</span<spanB</span<span style="font-family:Microsoft Yahei;"的相对位置关系，哪个描述是正确的</span<span? (<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204125758_120.png" alt="" /
A. A点在B点的左面
B. A点在B点的下面
C. A点在B点的前面
D. A点在B点的后面
正确答案:————
16.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"根据水平投影和侧面投影，选择正确的正面投影。</span<span(<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204114538_610.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115234_132.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204114601_589.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115656_58.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204115310_125.png" alt="" /
正确答案:————
17.[单选题] 我国国标规定，汉字应写成（ ）体，并应采用国家正式公布的简化字。
A.楷
B.宋
C.任意
D.长仿宋
正确答案:————
18.[单选题] 下图中表面粗糙度代号标注正确的是( )。
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164632_621.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164644_617.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163431_398.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163440_533.png" alt="" /
正确答案:————
19.[单选题] 在圆柱面上所作的直线一定与圆柱轴线（ ）。
A.平行
B.相交
C.异面
D.垂直
正确答案:————
20.[单选题] 关于基本视图和向视图说法不正确的是 ( )
A.基本视图和向视图都是向基本投影面投影得到的
B.基本视图一般不需要标注，向视图则需要标注
C.基本视图和向视图都必须标注
D.标注向视图需要同时标注投影方向(箭头)和视图名称(大写字母)
正确答案:————
21.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下列水平投影正确的是（</span<span<span </span</span<span style="font-family:Microsoft Yahei;"）。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104756_196.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105536_763.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105941_619.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204105558_990.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204104924_407.png" alt="" /
正确答案:————
22.[单选题] 装配图表达中规定：两个非接触的表面应画成( )。
A.一条线
B.两条线
C.三条线
D.四条线
正确答案:————
23.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下图中，点</span<spanB</span<span style="font-family:Microsoft Yahei;"是（</span<span<span </span</span<span style="font-family:Microsoft Yahei;"），取点方法是（</span<span<span </span</span<span style="font-family:Microsoft Yahei;"）。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204151630_448.png" alt="" /
A. 一般点，素线法
B. 一般点，纬圆法
C. 特殊点，素线法
D. 特殊点，纬圆法
正确答案:————
24.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知组合体的主视图和俯视图，左视图是</span<span (<span </span)</span<span style="font-family:Microsoft Yahei;"。</span
<p class="MsoNormal" <span style="font-family:Microsoft Yahei;"<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143635_131.png" alt="" /<br /</span
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144518_329.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143705_226.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143718_307.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142647_878.png" alt="" /
正确答案:————
25.[单选题] 形体的投影规律“长对正、高平齐、宽相等” ( )。
A.对整体不适用、局部适用
B.对整体、局部都适用
C.对整体、局部都不适用
D.对整体适用、局部不适用
正确答案:————
26.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知组合体的主视图和左视图，俯视图是</span<span (<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170122_557.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165052_174.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165752_906.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165114_318.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165132_700.png" alt="" /
正确答案:————
27.[单选题] <p class="MsoNormal" style="margin-left:8.0pt;" <span style="font-family:Microsoft Yahei;"下图为组合体的主、俯视图，该组合体形体的左视图是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span
<p class="MsoNormal" style="margin-left:8.0pt;" <span style="font-family:Microsoft Yahei;"<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144034_409.png" alt="" /<br /</span
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144735_811.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145142_807.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144115_656.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144812_985.png" alt="" /
正确答案:————
28.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知主、俯视图，正确的左视图是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204165041_662.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164409_206.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170331_700.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164435_262.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204164444_428.png" alt="" /
正确答案:————
29.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下图为组合体的俯视图，主视图正确的全剖视图是</span<span (<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204134630_876.png" alt="" /
A.<p class="MsoNormal" style="display:inline;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204134649_832.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133553_458.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133611_491.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204133625_718.png" alt="" /
正确答案:————
30.[单选题] 垂直于H面的平面称为( )。
A.正垂面
B.铅垂面
C.水平面
D.一般面
正确答案:————
31.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"下图所示为五棱柱的主俯视图，其中投影关系正确的是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <span style="font-family:Microsoft Yahei;"<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142815_653.png" alt="" /<br /</span
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142432_122.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142445_436.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204142853_803.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204141825_381.png" alt="" /
正确答案:————
32.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"已知主视图和俯视图，正确左视图是</span<span(<span </span)</span<span style="font-family:Microsoft Yahei;"。</span<span </span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163044_637.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163745_39.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163757_396.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163123_88.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204163819_168.png" alt="" /
正确答案:————
33.[单选题] 组合体画法正确的是 ( )
A.<p class="MsoNormal" style="display:inline;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170618_328.png" alt="" /
B.<p class="MsoNormal" style="display:inline;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171028_490.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204171122_467.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204170743_516.png" alt="" /
正确答案:————
34.[单选题] <p class="MsoBodyText" style="margin-left:8.0pt;" <span style="font-size:10.5pt;"下面平面是</span<span style="font-size:10.5pt;font-family:""(<span </span)</span<span style="font-size:10.5pt;"。</span<span style="font-size:10.5pt;font-family:"" </span
<p class="MsoBodyText" style="margin-left:8.0pt;" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204120102_115.png" alt="" /
A. 水平面
B. 正平面
C. 侧平面
D. 一般位置平面
正确答案:————
35.[单选题] 当圆柱体的轴线垂直于水平面时，圆柱面的水平投影具有 ，其形状是 。（ ）
A.积聚性，矩形
B.积聚性，圆
C.实形性，矩形
D.实形性，圆
正确答案:————
36.[单选题] 一线段的正投影长度( )。
A.一定小于该线段的实长
B.可能大于该线段的实长
C.一定等于该线段的实长
D.可以小于或等于该线段的实长
正确答案:————
37.[单选题] <p class="MsoNormal" <span style="font-family:Microsoft Yahei;"组合体左视图画法正确的是</span<span (<span </span)</span
<p class="MsoNormal" <img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145106_903.png" alt="" /
A.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204144257_218.png" alt="" /
B.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143228_903.png" alt="" /
C.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204143239_382.png" alt="" /
D.<img src="http://wljy.whut.edu.cn:80/uploadfiles/kindeditorAttached/image/20191204/20191204145204_617.png" alt="" /
正确答案:————
38.[单选题] 用纬圆法求圆锥表面上的点时，纬圆的直径大小与纬圆的圆心到锥顶的距离( )。
A.成正比
B.成反比
C.相等
D.没有关系
正确答案:————
39.[单选题] 装配图中每一种零件在视图上( )。
A.只编一个序号
B.编二个序号
C.最多编三个序号
D.每个视图均需编号
正确答案:————
40.[单选题] 已知双线螺纹，螺距为1，则它的导程为( )。
A.1
B.2
C.3
D.4
正确答案:————
，附件是答案，请
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