单项选择题
如图所示铰接悬臂行车道板、承受公路-Ⅱ级荷载。
A.1.78m B.1.86m C.2.03m D.1.75m
A.467.89kN·m B.426.65kN·m C.459.05kN·m D.442.23kN·m
A.18.48cm2 B.24.62cm2 C.36.96cm2 D.42.84cm2