问题:
[单选题]
5-3-1 图示结构中,设各杆EA相等且为常数,结点C的竖向位移∆CV=____(以向下为正)
A(1.172FPd)/(EA)
B(5.828FPd)/(EA)
C(6.828FPd)/(EA)
D(9.656FPd)/(EA)
5-3-1 图示结构中,设各杆EA相等且为常数,结点C的竖向位移∆CV=____(以向下为正)
A(1.172FPd)/(EA)
B(5.828FPd)/(EA)
C(6.828FPd)/(EA)
D(9.656FPd)/(EA)
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