已知平面四边形ABCD的CD边为正平线，完成四边形ABCD的水平投影，试判断下面哪种作图方法及结果是正确的？[img=1423x921]18033578a88e68e.jpg[/img]
A: [img=1423x921]18033578b8359e1.jpg[/img]
B: [img=1423x921]18033578c949457.jpg[/img]
C: [img=1423x921]18033578d7e17c8.jpg[/img]
D: [img=1423x921]18033578e7ae5eb.jpg[/img]
A: [img=1423x921]18033578b8359e1.jpg[/img]
B: [img=1423x921]18033578c949457.jpg[/img]
C: [img=1423x921]18033578d7e17c8.jpg[/img]
D: [img=1423x921]18033578e7ae5eb.jpg[/img]
举一反三
- 已知平面四边形ABCD的CD边为正平线，完成四边形ABCD的水平投影，试判断下面哪种作图方法及结果是正确的？[img=1423x921]1803d0d061cd34c.jpg[/img] A: [img=1423x921]1803d0d070eaef8.jpg[/img] B: [img=1423x921]1803d0d0802793c.jpg[/img] C: [img=1423x921]1803d0d08c35421.jpg[/img] D: [img=1423x921]1803d0d09c22397.jpg[/img]
- 已知平面四边形ABCD的CD边为正平线，完成四边形ABCD的水平投影，试判断下面哪种作图方法及结果是正确的？[img=1423x921]180356af9693b23.jpg[/img] A: [img=1423x921]180356afa5a8649.jpg[/img] B: [img=1423x921]180356afb4b96dc.jpg[/img] C: [img=1423x921]180356afc0ef604.jpg[/img] D: [img=1423x921]180356afd0cca60.jpg[/img]
- 已知平面四边形ABCD的CD边为正平线，完成四边形ABCD的水平投影，试判断下面哪种作图方法及结果是正确的？[img=1423x921]18037e38d235322.jpg[/img] A: [img=1423x921]18037e38e41a2e3.jpg[/img] B: [img=1423x921]18037e38f4d7023.jpg[/img] C: [img=1423x921]18037e3902edc9c.jpg[/img] D: [img=1423x921]18037e39146c0b8.jpg[/img]
- 已知平面四边形ABCD的CD边为正平线，完成四边形ABCD的水平投影，试判断下面哪种作图方法及结果是正确的？[img=1423x921]18037af9091db13.jpg[/img] A: [img=1423x921]18037af918c0686.jpg[/img] B: [img=1423x921]18037af9297e209.jpg[/img] C: [img=1423x921]18037af93899a8b.jpg[/img] D: [img=1423x921]18037af947c11c3.jpg[/img]
- 已知平面四边形ABCD的CD边为正平线，完成四边形ABCD的水平投影，试判下面哪种作图方法及结果是正确的？[img=1423x921]1803d75525e7f72.jpg[/img] A: [img=1423x921]1803d755350ba7c.jpg[/img] B: [img=1423x921]1803d7554663ac6.jpg[/img] C: [img=1423x921]1803d755558fa0e.jpg[/img] D: [img=1423x921]1803d75566f0889.jpg[/img]