A.顺砖砌筑 B.梅花丁砌筑 C.丁砖砌筑 D.无要求
A.5%~8% B.5%~10% C.10%l15% D.10%l20%
A.摆砖 B.抄平 C.挂线 D.放线
A.8~10mm B.10~12mm C.8~12mm D.12~15mm