• 2022-06-30
    图示结构A点竖向位移(向上为正)为:[img=216x164]180316e603178d9.jpg[/img]
    A: [img=58x48]180316e60e32b20.jpg[/img]
    B: [img=46x46]180316e61802ee2.jpg[/img]
    C: [img=51x49]180316e62353665.jpg[/img]
    D: [img=51x50]180316e62e0fc2f.jpg[/img]