What is the most important characteristic of the extinguishing agent in fighting a class C fire?（）<br>A:Weight<br>B:Temperature<br>C:Electrical nonconductivity<br>D:Cost

What is the most important characteristic of the extinguishing agent in fighting a class C fire?（）
A:Weight
B:Temperature
C:Electrical nonconductivity
D:Cost

出自：海船船员证

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