A.20%~30% B.60%~70% C.30%~40% D.45%~60%
A.20%~50% B.30%~70% C.55%~75% D.30%~80%
A.用嘴吹滅 B.用水沖滅 C.用泡沫滅火器噴滅 D.用濕布撲滅