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全部科目 > 水路交通运输技能考试 > 海船船员考试 > 船舶管理(驾驶专业) > 航海英语 > 船舶货运技术 > 液体散货运及有关规则

单项选择题

Pump out No.2 port ballast tank to（）.

A.keep vessel afloating
B.refloat vessel listing to starboard
C.make vessel all-right
D.bring vessel upright

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