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单选题
A fire of escaping liquefied flammable gas is best extinguished by（）.
A
cooling the gas below the ignition point
B
cutting off the supply of oxygen
C
stopping the flow of gas
D
interrupting the chain reaction
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cooling the gas below the ignition pointB
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interrupting the chain reaction
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prevent the generation of flammable or combustible gas in tanksB
blow out cargo lines to prevent the build up of gas concentrationsC
dilute tank atmospheres to keep gas concentrations below the lower explosive limitD
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prevent the generation of flammable or combustible gas in tanksB
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