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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 > 航海英语综合练习

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When are you allowed to throw plastic garbage overboard?（）

A.Being mroe than 25 miles from shore
B.Only at night when it‟s dark
C.Being more than 6 miles from shore
D.Never

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