• 2022-06-30
    图示结构A点竖向位移(向上为正)为:[img=216x164]180376164cee974.jpg[/img]
    A: [img=58x48]18037616578acfe.jpg[/img]
    B: [img=46x46]18037616630564c.jpg[/img]
    C: [img=51x49]180376166df4840.jpg[/img]
    D: [img=51x50]180376167905f5f.jpg[/img]