单项选择题
A. The second officer. B. The chief officer. C. The third officer. D. Bosun.
We should take （）to keep the chemicals away from fire.A...
单项选择题We should take （）to keep the chemicals away from fire.
A. great care B. some measures C. fresh water D. fresh air
During a fire drill on a vessel, what action is require...
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
（）are used for lifesaving .A. Life-jacket and lifebuoyB...
单项选择题（）are used for lifesaving .
A. Life-jacket and lifebuoy B. Freeboard C. Telemeter D. Draft
