单项选择题
A.80mm B.100mm C.120mm D.150mm
A.在圈梁处搭接 B.在圈梁处断开 C.穿过圈梁,保证构造柱纵筋上下贯通 D.在圈梁处断开或穿过都可以
A.3m B.3.3m C.3.6m D.3.9m