A.图1
B.图2
C.图3
D.图4
[单选题]A.图1B.图2C.图3D.图4
[单选题]A.0.125/cmB.0.3.46/cmC.0.554/cmD.0.692/cmE.0.885/cm
[单选题]A.B.C.D.E.
[单选题]A.16B.27C.36D.54E.62
[单选题]A.2B.C.1D.E.A、B、C、D都不正确
[单选题]A.10kNB.25kNC.35kND.20kN
[单选题]A.B.C.D.