悬臂梁受载情况如图所示,在截面C上:
考试:=$ecms_gr[fenlei]?>
科目:=$ecms_gr[kemu]?>(在线考试)
问题:
A:剪力为零,弯矩不为零
B:剪力不为零,弯矩为零
C:剪力和弯矩均为零
D:剪力和弯矩均不为零
答案:
解析:
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