【判断题】
下图水平投影错误。<img src=https://huaweicloudobs.ahjxjy.cn/2BE9CFFC423B251BA7DCED6DCBAD62BC.png title=图片6.png alt=图片6.png style=width: 262px; height: 198px; width=262 height=198/>
①
正确
②
错误
【判断题】
下图正面投影正确。<img src=https://huaweicloudobs.ahjxjy.cn/2BE9CFFC423B251BA7DCED6DCBAD62BC.png title=图片6.png alt=图片6.png style=width: 269px; height: 212px; width=269 height=212/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/083EAF89743A4B999491608163999221.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/C7FF41CF1B4DABDBFFEC97D73A43FB20.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4447A48250A6EDB672FC8AE59E8BB590.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/77077F98B79CDC8825E27B48D8279E3A.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/86F4873E26A69DA430ECF6268D0B5336.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/6029CAFF056417BA984035D5082344D5.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/EC2A6409E91005C1CE7FF1AABEF1277D.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/6512581FC190D811F83E817154908048.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/805E9034226F4CB0FC98A639BBA0A434.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/43D12E24A3DB26A45E8B987A27F99890.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/6F6BE2E230E2DF84F9389B9C4951C546.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/F606240993A56E81B958B25D2D593FE1.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/5C26A7E5079B1B553ACF37CE1F8CD698.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/C1BD49C6AD5D8202CAA2CD81673BA451.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/D4E2FFD55C9E52852797B5FD82096020.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/396D9D2B5D042909788CABA99A919AE2.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/D66FB42E17613DF05332FC8033094DBD.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4E62B11889FCDC4AE20A198F1290CA47.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/4F02F08AAF2F12F901C28752C4FB7F2E.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/34D67E57E4CF894C4BD894E5A17E11EF.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/846198B44B940BFFA49820BECDC79DBA.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/719913367DA4B697B4797A6CC0D21356.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/EF48578E677CCB3908367229C001338C.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/1F94EF7E92000B3F73C3C5AD741A2258.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/E88AEC751370E8C1088F8A7E0D5AF0EC.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/672C370BB35B710A418E3D500E9EC2E6.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/CECE98386F1859806D8F10B0B343805D.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/178FCF9F8240F543E75731808780BC3F.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/ABF175860647D441D1CD8FA44526A9FD.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/4CD8D84707C095DA9423433F9A9DDC63.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/477EE8F42A59CD583137BC194E090916.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/A37C7EAC9E431F73F433AC5DB032635D.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4C4E61580D5439927A513A1750AEBD16.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B4975ADC29FA910E8983060A7C2B990E.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/DB8F194C7E1921076A939EA5B0AD3E75.png title=6-4.png alt=6-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/26591DFA78ACA464BEA26CC40B7ACAA0.png title=6.png alt=6.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/30E63372707E3E36D269F3A312A3836F.png title=6-1.png alt=6-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/4E82352AE014D3D8C7F1290DA6EC5840.png title=6-2.png alt=6-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/A16A2E4538CA58C55302EA06E9159964.png title=6-3.png alt=6-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/EE0FDF9DF0A74A46F5E404AA30F3FA93.png title=6-4.png alt=6-4.png/>
