A.400;200 B.500;200 C.400;300 D.500;300
A.150 B.180 C.200 D.350
A.500 B.1000 C.1500 D.2000
A.240mm实心砖墙 B.空斗砖墙 C.120填充墙 D.充气混凝土砌块
A.5 B.6 C.7 D.8