单项选择题
To prevent the spread of fire by conduction you should（）.
A.cool the bulkheads around the fire
B.remove combustibles from direct exposure
C.close all openings to the area
D.shut off all electric power
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A.glycerine
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单项选择题
There is a fire in the crew’s quarters of your vessel. You should（）.
A.ventilate the quarters as much as possible
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