单项选择题
During a fire drill on a vessel, what action is required？（）
A. Start each fire pump B. Launch and run a lifeboat C. Inspect fire hoses D. Close each fire pump
单项选择题 （）are used for lifesaving .
单项选择题 Oil fires are best extinguished by （）.
单项选择题 You will extinguish a fire when you remove （）.
