单项选择题
A.51.7 B.55.2 C.61.7 D.65.2
A.M=5.89kN·m;V=16.7kN B.M=6.85kN·m;V=17.5kN C.M=7.36kN·m;V=18.85kN D.M=9.51kN·m;V=26.5kN
A.M=6.31kN·m;V=18.31kN B.M=6.31kN·m;V=21.02kN C.M=7.51kN·m;V=21.02kN D.M=9.51kN·m;V=26.5kN