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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
cutting off the supply of oxygenC
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单选题An inert gas system on a tanker should be used to（）.A
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blow out cargo lines to prevent the build up of gas concentrationsC
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单选题An inert gas system on a tanker should be used to（）.A
prevent the generation of flammable or combustible gas in tanksB
blow out cargo lines to prevent gas concentrationsC
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prevent fires in the pumproom by continually displacing flammable vapors
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shut off the leakC
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