Convection spreads a fire by（）.<br>A:heated gases flowing through ventilation syetem<br>B:the transfer of heat across an unobstructed space<br>C:burning liquids flowing into another space<br>D:transmitting the heat of a fire through the ships metal

Convection spreads a fire by（）.
A:heated gases flowing through ventilation syetem
B:the transfer of heat across an unobstructed space
C:burning liquids flowing into another space
D:transmitting the heat of a fire through the ships metal

出自：海船船员证

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