• 2022-06-30
    图示结构A点竖向位移(向上为正)为:[img=216x164]18035f03464a943.jpg[/img]
    A: [img=58x48]18035f0352b6667.jpg[/img]
    B: [img=46x46]18035f035dac795.jpg[/img]
    C: [img=51x49]18035f036b140aa.jpg[/img]
    D: [img=51x50]18035f037540600.jpg[/img]