画法正确的旋转剖视图是（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/479019d916484fb4892ffbce72c46521.png
举一反三
- 根据主、俯视图，画法正确的半剖视图是 （ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/78364e93f12d4936a8e2f13f35496e29.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" />
- 下列碳正离子的稳定性最大的是（ ） A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/5ae2658f66544b629fdcabed52d5f957.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/1cefba39460048ef898157ea2ebc28b4.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/451893995c5e4c8f8109398975819582.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/31d934d857664b5c8e554a3b9c0fde75.png">
- 下列螺钉连接，画法正确的是（ ）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/41c1e94adfac4cb585889ed6c0415aec.png
- 下列螺栓连接画法正确的是（）。http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/a2a72beead024105b50a0d0e7b917bda.png