A.較易燃?xì)馊苣z B.極易燃?xì)馊苣z C.易燃?xì)馊苣z D.不燃?xì)馊苣z
A.易燃液體B.易燃固體物質(zhì)C.助燃?xì)怏wD.易燃?xì)怏w
A.摩擦 B.顛簸 C.撞擊 D.震蕩