单项选择题
A fire in the galley always poses the additional threat of（）.
A.contaminating food with extinguishing agent B.shutting all sources of air into the compartment C.closing the sea chest D.a grease fire in the ventilation system
单项选择题 A fire is discovered in the forepeak of a vessel at sea. The wind is from ahead at 35 knots.You should（）.
单项选择题 A fire of escaping liquefied flammable gas is best extinguished by（）.
单项选择题 A fire starts on you vessel while refueling. You should first（）.
