A.舌系带
B.舌下皱襞
C.颌舌沟
D.伞襞
E.舌下肉阜
[单选题]A.舌系带B.舌下皱襞C.颌舌沟D.伞襞E.舌下肉阜
[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
[单选题]A.54.88kNB.112.9kNC.94.08kND.74.48kN