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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 > 海上应急用语 > 紧急用语

单项选择题

A message giving warning of a hurricane should have which prefix when sent by radiotelephone?（）

A.Pan-Pan (3 times)
B.Securite Securite Securite
C.TTT TTT TTT
D.No special prefix

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