单项选择题
A.砌体的强度等级 B.砌体的类别 C.屋盖或楼盖的类别 D.环境温差
A.32.2;33.5 B.31.1;34.1 C.31.1;32.1 D.31.1;33.5
A.m0/(9i) B.m0/(8i) C.m0/(11i) D.m0/(4i)