已知组合体三视图，分析圆孔和方孔的相对位置，判断对应的立体图是否正确（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/c52e6ead6439492a96ee4c7c2ac56cba.png
举一反三
- 根据立体图，画法正确的三视图是（）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/285dfe434ee2438596d8790400d06723.png
- 已知两视图，判断正确的左视图是（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/a42c8422670c4e51b8a581e95ee9c84e.png
- 已知组合体俯、左视图，选择正确的主视图（）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/1799cce3bbd242d5bdbb7f416d62e8c2.png
- 参照如下所示立体图，观察三视图，可判断出，A面是水平面http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/fbf78b601e7145f6b41eb5a02d0dd01d.png
- 选择棱锥被正垂面截切后正确的左视图。 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/6f582ca8c21a4113a4470da4dc266075.png" /> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/65ae2f577aa14584ae75cc84ab3050c1.png" /> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/089db3476a0145e19cb4b135eb0437db.png" /> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/e60c72d724f74552963c93af681ca44d.png" />