【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/790B064F65D979C47A8A6AFD76067CBB.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4022AAEF7ADCD3D705DD7046ACA3ACC9.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/96F7C08A45E53F44220639512914935F.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/6CB86E59836A64E25819E56EF725F5A5.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/042834FF2093E245A5DCF99ED12F0EC4.png title=4-4.png alt=4-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/AF854B45C2371CF8A7F8A2B86A9BC86E.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/E7EAA3102655BA53F48E503ED3CF8EB7.png title=a.png alt=a.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4A5EB0D9FF10BD1F08A825AF41FCF223.png title=b.png alt=b.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/3FAE9C4141DD11EA035574BE4B529DC3.png title=c.png alt=c.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A6535FA3741EC3235BC000EC66134739.png title=d.png alt=d.png/>
【判断题】
根据图所示切割体的正面投影和水平投影，侧面投影的转向廓线为直线。<img src=http://60.205.157.60/course/a@4A86563E6B6DA06893F711ACC27EA6B8.png title=4.png alt=4.png/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/7ED7CFA0B7FA603B2B396DCECE26920E.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/846E7A04364CB9C0DFF63EF60ABA187A.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/AE918B40865D8FA201635C92EC219F96.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/F3E3ABC857F22D7E44924061D5D5FE1F.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/249BA81FEF6BC5860F47866C5E039FA0.png title=4-4.png alt=4-4.png/>
【判断题】
根据图所示切割体的正面投影和水平投影，图3侧面投影正确。<img src=http://60.205.157.60/course/a@4A86563E6B6DA06893F711ACC27EA6B8.png title=4.png alt=4.png/>
①
正确
②
错误
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/922F5955C6CBD4A5A99B6185A8FB8E7D.png title=4.png alt=4.png/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/575BE008647B304C7E254668580ACE11.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/8AE7D08036570C88C241418D9B37D96D.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/0305757AC7797212433EC5BB2926BB7D.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/DA9BA62303D3D2F31CE81162BC49FD11.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/A0EB45652E8F43F63B245970EED52268.png title=4-4.png alt=4-4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/F5326515F34582EA7FEF0E3310B920B4.png title=4.png alt=4.png/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/154C4F09C5A3B06F9B66CA10664B9E94.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/8EE19EDB3A5F6F5D3E9A636E7C802596.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/9FCDFA547FAAE962AE075F2CD21FED28.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/7473782C9D9197B4DCBA01997F125151.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CAA54583C9BBD2A49FE9C4661F2AEE36.png title=4-4.png alt=4-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/CE438FFA8937454B38C0DE9C1750383A.png title=4.png alt=4.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/4C7B7F274236552013503AD72645C174.png title=4-1.png alt=4-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/A75671EE2CE0AE0563FCB3CE16ABE5CC.png title=4-2.png alt=4-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C38718C1834818D48061D4B34FD05914.png title=4-3.png alt=4-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/96D982B8E3E7195EA7A3F24375E88F73.png title=4-4.png alt=4-4.png/>
%E5%85%B1%EF%BC%88%20%20%EF%BC%89%E6%9D%A1%E3%80%82%3Cimg%20src%3Dhttp://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png%20title%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png%20alt%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png/%3E&pn=1){kind=link}
%E5%85%B1%EF%BC%88%20%20%EF%BC%89%E6%9D%A1%E3%80%82%3Cimg%20src%3Dhttp://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png%20title%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png%20alt%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png/%3E&pn=2){kind=link}
%E5%85%B1%EF%BC%88%20%20%EF%BC%89%E6%9D%A1%E3%80%82%3Cimg%20src%3Dhttp://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png%20title%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png%20alt%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png/%3E&pn=4){kind=link}
%E5%85%B1%EF%BC%88%20%20%EF%BC%89%E6%9D%A1%E3%80%82%3Cimg%20src%3Dhttp://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png%20title%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png%20alt%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png/%3E&pn=5){kind=link}
%E5%85%B1%EF%BC%88%20%20%EF%BC%89%E6%9D%A1%E3%80%82%3Cimg%20src%3Dhttp://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png%20title%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png%20alt%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png/%3E&pn=6){kind=link}
%E5%85%B1%EF%BC%88%20%20%EF%BC%89%E6%9D%A1%E3%80%82%3Cimg%20src%3Dhttp://60.205.157.60/course/a@897BB88B56D9897C8DCF0F7A3446181B.png%20title%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png%20alt%3D%E5%8D%95%E9%80%89%E9%A2%98%E5%9B%BE4.png/%3E&pn=10){kind=link}