
A.LRN
B.NRL
C.RLN
D.RNL
[单选题]A.LRNB.NRLC.RLND.RNL
[单选题]A.LRNB.NRLC.RLND.RNL
[单选题]A.LRNB.NRLC.RLND.RNL
[单选题]A.54.88kNB.112.9kNC.94.08kND.74.48kN
[单选题]A.0.017B.0.026C.0.051D.0.076
[单选题]A.τ=P/(πDH)B.τ=P/(2dH)C.τ=P/(πdH)D.
[单选题]A.单向应力状态B.二向应力状态C.三向应力状态D.纯剪应力状态