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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 > 船舶操纵 > 锚泊与靠离泊作业

单项选择题

Pilotage in this country is（）.

A.Free of charge
B.Important
C.Required
D.Unnecessary

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