A.可燃金屬火災(zāi) B.可燃?xì)怏w火災(zāi) C.易燃液體的火災(zāi) D.廚房火災(zāi)
A.3.5~5倍 B.2.5~4倍 C.1.5~2.5倍 D.1~2倍
A.8h B.12h C.24h D.48h