• 2022-06-30
    图示刚架截面A的弯矩为( )。[img=245x182]180334c5597da75.jpg[/img]
    A: [img=138x27]180334c56402c77.jpg[/img]
    B: [img=139x24]180334c56e62a27.jpg[/img]
    C: [img=137x26]180334c57a1822c.jpg[/img]
    D: [img=136x26]180334c58483cec.jpg[/img]