A.承重墻、實(shí)體墻 B.內(nèi)墻、外墻 C.實(shí)體墻、空體墻、復(fù)合墻 D.承重墻、非承重墻
A.2%~3% B.3%~4% C.0.1%~0.3% D.0.5%~1%
A.900mm B.800mm C.1000mm D.1200mm