A.減少砍磚次數(shù) B.保證墻面美觀 C.保證墻體的整體穩(wěn)定 D.施工方便
A.1.8m B.1.2m C.2.0m D.2.5m
A.0.6~0.8 B.0.9~1.1 C.1.2~1.4 D.1.5~1.7