A.首層人數(shù) B.地下疏散人數(shù)最多一層的疏散人數(shù) C.該建筑疏散人數(shù)暈多的一層的疏散人數(shù) D.建筑物各樓層平均疏散人數(shù)
A.90° B.100° C.110° D.135°
A.400mm B.500mm C.600mm D.800mm