http://image.zhihuishu.com/testzhs/onlineschool/eweb/201511/35ca2570910f449c9631209cbe24c11f.gif
http://image.zhihuishu.com/testzhs/onlineschool/eweb/201511/35ca2570910f449c9631209cbe24c11f.gif
下图中螺钉连接画法错误数量是http://image.zhihuishu.com/testzhs/onlineexam/ueditor/201511/784f801c9c784a1f88e344579f8879ff.png
下图中螺钉连接画法错误数量是http://image.zhihuishu.com/testzhs/onlineexam/ueditor/201511/784f801c9c784a1f88e344579f8879ff.png
已知立体的正面投影和侧面投影，选择正确的水平投影（ ）http://image.zhihuishu.com/testzhs/onlineexam/ueditor/201511/133a555734dd4b1588ba5a5e7c7e00c4.png
已知立体的正面投影和侧面投影，选择正确的水平投影（ ）http://image.zhihuishu.com/testzhs/onlineexam/ueditor/201511/133a555734dd4b1588ba5a5e7c7e00c4.png
1