【单选题】
<img src="20190808/1565257767420227.png" title="1565257767420227.png" alt="1.png"/>（ ）
①
-1
②
-2
③
1
④
2
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/CB960D14C496DB01C30A2056628DD5B1.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/5E37984FCA01EC55F2EA8E6992D33841.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/556806B3E17ED3566F55C6A5FC5D9253.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/7B064D04AAE8DB3D664592130FCE121B.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/8651A03B09B53F56C09969A629F8D302.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/90904F1CFB6CF4F8DBB7922B06731BC5.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/9A7580F0E71452916652F3C2A3F33532.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/D5AD59612CAF066090ACA2E392A978AD.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/97972828ECD8762D40CA655C43371BDE.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/3D1D30A12BF376E152CD44FE6C6EBB72.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/34BFE59D54905F30E206325B4732F369.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/71909EB0127320F91108F08DEDD4646E.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/7830B3E2C69936B638B02967CEB71B0A.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/F2D351030D3A9A335A37D38C5AD0EBCF.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/DF3967A1981427675062A9A750CF3079.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/3810BC5707BA43311C611A00B4ED412F.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/21B1C9B740BCEF1A231A7F0C889ADE93.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C2E147E2701C618344A10E609FA0C334.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/9AAC724C6B781702675649F3437F3E6A.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/85232087C2D3E7209D767575A09C9E95.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/1453C12E9A10DE1B649AE4B872D857D5.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/463DD47824EE38F7C2249DDDE45178BA.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/C50161843C1FBF0047F028E01E26CBD2.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/807C001699F582245A7109426D1F9C89.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/6DEA00584807623F978B51C76C515A4D.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/3B7C166703DB000AC91493AF99AD2625.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/D30E08B7E8F6B6E5404C13CA27DDA39B.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/61A0DDB0DC910F1C782A0CD2D44FD6C4.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/DC402ED406F7E0B0D3706E7875A0B4EE.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/E4C70964A6868BCFE3270AE4CA238296.png title=1-4.png alt=1-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/B3F81E02A1E4FBDDFEE238B40CB3D8E5.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/F6E3C2E4CB84849368F804C33DDE02B6.png title=1-1.png alt=1-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/381D356C264547244A4F56B1D367A4AD.png title=1-2.png alt=1-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A87B6CEA2690F666284EABC193FAB608.png title=1-3.png alt=1-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/EF10C1BBD3F39F2C35896FFFA29DCE89.png title=1-4.png alt=1-4.png/>
【单选题】
直线CD在侧面投影面上的投影有积聚性，因此称之为（ ）。<img src=https://huaweicloudobs.ahjxjy.cn/F2AABBA0431B209EC3B47E0938D54BEA.png title=图片1.png alt=图片1.png style=width: 358px; height: 214px; width=358 height=214/>
①
一般位置直线或倾斜线
②
侧垂线
③
正平线
④
水平线
【多选题】
<img src=https://huaweicloudobs.ahjxjy.cn/48268F9AEB8F721BDB1B86648DC19C5D.png title=1.png alt=1.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/8227CC76E3650A47E7781833BA873A33.png title=2.png alt=2.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/0957968590547D56D2D5577D9C7A69B0.png title=3.png alt=3.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B77236E9BA9DA9CE821226528DC17257.png title=4.png alt=4.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/34327DD163DF1502913DB5F1022F074B.png title=5.png alt=5.png/>
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