【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/E60A20C9FB1B69791C71EA13FF595AC5.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/15819DA229AFE327C16929DDCB6CB3E2.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/261D84768463BD053573833546BD1B73.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/B2ECC36DD1F282AA865C23ACFDE9E7DB.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/5910448DBF1A4CBC2733DF98EEDF647B.png title=2-4.png alt=2-4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/0B5FCE6D9164999ECA0DEEA5A509CF8E.png title=2.png alt=2.png/>
①
正确
②
错误
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/D15E15E6C4E28F30B8C66C712E13C1E1.png title=2-B.png alt=2-B.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/71F96B01EC42624D2F43333C279904D8.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/434DC9367A7013D83A4C86FA0710357B.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/CCB45D994475E244267423BA4E6B4A5E.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/0127ABAECB8C07F3EAB3DF13073029B9.png title=2-4.png alt=2-4.png/>
【单选题】
根据图所示AB、CD直线和P、Q平面，直线CD在侧面投影面上的投影反映实长，因此称之为（ ）。<img src=http://60.205.157.60/course/a@5813350423C48EBCC066EA44AE427F76.png title=2.png alt=2.png/>
①
正平线
②
一般位置直线或倾斜线
③
侧平线
④
水平线
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/8A4AB8C5B8301EB51F4374BCC47AF59A.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/2C8042EEDA56A67E8EF864FAEC7511DB.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/9D104F1956399D9DB924C536F1367961.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/5D5FDF247A03C3B66D25BACEF8A05F0D.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/87C9A6E0B4D0EED3B870A9530CA4C0AC.png title=2-4.png alt=2-4.png/>
【单选题】
<img src=https://huaweicloudobs.ahjxjy.cn/50B8AB3880EC4FD1901EE390ABF55B59.png title=2.png alt=2.png/>
①
<img src=https://huaweicloudobs.ahjxjy.cn/5758B772498446FA82AC77D6D7F305E8.png title=2-1.png alt=2-1.png/>
②
<img src=https://huaweicloudobs.ahjxjy.cn/B6454D5F78F647A4D82E69A2B2819675.png title=2-2.png alt=2-2.png/>
③
<img src=https://huaweicloudobs.ahjxjy.cn/752DB2A405FFF9EE7DA06D85FB42F136.png title=2-3.png alt=2-3.png/>
④
<img src=https://huaweicloudobs.ahjxjy.cn/CEF05144723A27B982B70DE56A618B07.png title=2-4.png alt=2-4.png/>
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/654817D4D289F0238E09CDE6BED8BD90.png title=2.png alt=2.png/>
①
正确
②
错误
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/900D649E56E9D0206EB96757ACF13EF8.png title=2.png alt=2.png/>
①
正确
②
错误
【判断题】
<img src=https://huaweicloudobs.ahjxjy.cn/BB0733A48C56D0809351E40E9A8D7FBE.png title=2.png alt=2.png/>
①
正确
②
错误
【单选题】
平面P在（ ）面上的投影具有积聚性，因此称之为正垂面。<img src=https://huaweicloudobs.ahjxjy.cn/0D8E5E16CD6410977CFF2ABFD085E1D3.png title=图片2.png alt=图片2.png style=width: 364px; height: 182px; width=364 height=182/>
①
正面投影
②
水平投影
③
侧面投影
④
一般位置
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