A.1.2m B.1.5m C.2m D.l0/3(l0為墻梁計(jì)算跨度)
A.Ⅰ、Ⅱ、Ⅲ B.Ⅰ、Ⅱ、Ⅲ、Ⅳ C.Ⅱ、Ⅲ、Ⅳ D.Ⅰ、Ⅲ、Ⅳ
A.60mm B.120mm C.180mm D.300mm