A.等于 B.大于 C.小于 D.可能大于也可能小于
A.166.5kN/m B.133.2kN/m C.145.6kN/m D.154.8kN/m
A.0.05~0.15 B.0.10~0.45 C.0.10~0.25 D.0.20~0.35