AB杆变形如图中虚线所示,则 A 端的杆端弯矩为:( ) [img src="https://img.haodaxue.net/uploadimg/image/20200527/20200527182255_19154.png" alt="" />
A.[img src="http://img.haodaxue.net/uploadimg/ico/2020/0527/1590574700736648.png" />
B.[img src="http://img.haodaxue.net/uploadimg/ico/2020/0527/1590574756141098.png" />
C.[img src="http://img.haodaxue.net/uploadimg/ico/2020/0527/1590574777685640.png" />
D.[img src="http://img.haodaxue.net/uploadimg/ico/2020/0527/1590574791971803.png" />
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正确答案: C 答案分析:无
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