An advantage of an ABC dry chemical over a carbon dioxide extinguisher is().
A.lack of toxicity
B.the multipurpose extinguishing ability
C.bum-back protection
D.cooling ability
参考答案:B
An advantage of an ABC dry chemical over a carbon dioxide extinguisher is().
A.lack of toxicity
B.the multipurpose extinguishing ability
C.bum-back protection
D.cooling ability
参考答案:B