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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 > 海上通信 > VHF通信

单项选择题

One hour before arrival at Elbe 1 light vessel，masters are advised to contact the pilot boat by（）.

A.telephone
B.telegraph
C.telex
D.VHF

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