An extinguishing agent which effectively cools，dilutes combustible vapors，removes oxygen，and provides a heat and smoke screen is（）.<br>A:carbon dioxide<br>B:Halon 1301<br>C:dry chemical<br>D:water fog

An extinguishing agent which effectively cools，dilutes combustible vapors，removes oxygen，and provides a heat and smoke screen is（）.
A:carbon dioxide
B:Halon 1301
C:dry chemical
D:water fog

出自：海船船员证

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