单项选择题
A.200.2 B.211.4 C.213.5 D.215.6
A.200 B.214.47 C.237.84 D.276
A.1.82kN·m;21.5kN B.1.82kN·m;19.74kN C.1.57kN·m;19.74kN D.1.21kN·m;13.34kN