题目内容
During a lifeboat drill, the ________ takes care of the engine room work.
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During a lifeboat drill, the ________ is in charge of the deck work.
During a lifeboat drill, the ________ is usually the general commander.
It is usually the responsibility of the ________ to maintain life-saving appliances in good condition.
In this course, DPA is the abbreviation of ________ .
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