图示结构弯矩图形状正确的是：（ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/fe43963afa0d421f8d03a227d231a261.jpg
举一反三
- 图示结构各杆的弯矩图都等于零(无弯矩状态)。（ ）http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/9e6262f8eb4445449aba4e968a9e47c1.jpg
- 在绘制程序流程图时，下面哪个表示“选择结构”【 】 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f690d214ae1a4af7b5efcdb4b898f2ac.png"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/d5525f58c3264ce69be6c8a899f5e49c.png"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/f058e79b5ce846e1a57975ef8d0a9ac8.png"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/6aa136bdf7f8499fa1bccb119e6db668.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">
- 下列哪味中药为桂枝 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/1ecec46f5cb24d1fba6eda07816fff21.JPG"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/6630610aa0cf4408832ccd382a3263e2.JPG"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/862f3e2a8fb7477cba0e4142b90606da.JPG"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/fb77e5e5386c43739e4ef959765e0dcd.jpg">
- 下列哪味中药为柴胡 A: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/52f519e3210144ab87fef57fa951264a.jpg"> B: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/67ed1a0a3783414782a019ae69ea0581.jpg"> C: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/661692aff17840c4a892da13f70a78e8.jpg"> D: <img src="http://image.zhihuishu.com/zhs/onlineexam/ueditor/201811/3f64d19bea8741acb95f5a5b1a9dc3ae.jpg">