• 2022-06-30
    图示对称结构EI=常数,中点截面C及AB杆内力应满足:[img=108x102]18038cbfe8d4767.jpg[/img]
    A: [img=214x26]18038cbff30530c.jpg[/img]
    B: [img=246x23]18038cbffe4ae02.jpg[/img]
    C: [img=234x25]18038cc008c7514.jpg[/img]
    D: [img=214x26]18038cc0144b1bb.jpg[/img]
  • 举一反三