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[单选题]图1-5-95所示超静定结构,大致弯矩图是( )。图1-5-95A.B.C.D.
[单选题][北京2009年真题]A.9B.17C.24D.29
[单选题]图18所示桁架结构中零杆根数为( )。图18A.9根B.8根C.7根D.6根
[单选题]( )。A.5B.4C.3D.2
[单选题]A.B.u(t)=-1(t-1)+2×1(t-2)-1(t-3)(V)C.u(t)=1(t-1)-1(t-2)(V)D.u(t)=-1(t+1)+1(
[单选题]A.1/2B.1/4C.1/8D.1/16
[单选题]A.(1)(2)(3)B.(1)(2)(4)C.(2)(3)(4)D.(3)(1)(2)