如图所示,直杆受扭转力偶作用,在截面1-1和截面2-2处的扭矩为:A.5kN·m,5kN·mB.25kN·m,-5kN·mC.35kN·m,-5kN·

发布时间:2021-02-14 12:05:08

1.[]如图所示,直杆受扭转力偶作用,在截面1-1和截面2-2处的扭矩为: A.5kN·m,5kN·m B.25kN·m,-5kN·m C.35kN·m,-5kN·m D.-25kN·m,25kN·mABCD

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