A.abandon ship
B.dismissal from fire and emergency stations
C.fire and emergency
D.man overboard
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What is NOT a characteristic of carbon dioxide fire-extinguishing agents?（）
What are the most important reasons for using water fog to fight fires?（）
What is required in addition to the heat，fuel，and oxygen of the fire triangle to have a fire?（）
To lubricate the swivel or remove corrosion from a fire hose coupling，you should use（）.
The type of extinguisher which should be used for an electricity fire is（）.
What does the term head mean when applied to a fire pump?（）
To remedy a leaking fire hose connection at the hydrant，secure the valve and（）.
Water fog from an all-purpose nozzle may be used to（）.
The spread of fire is NOT prevented by（）.
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