A.該層人數(shù) B.該層以下疏散人數(shù)最多一層的疏散人數(shù) C.該層及以下疏散人數(shù)最多一層的疏散人數(shù) D.建筑物各樓層平均疏散人數(shù)
A.20mmx30mm B.30mmx60mm C.30mmx50mm D.50mmx80mm
A.500m2 B.1000m2 C.1500m2 D.2000m2