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航海英语综合练习

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单项选择题

Land-based authority conducting and co-ordinating search and rescue operations in a designated area defines().

A.RCC
B.OSC
C.CSS
D.GPS

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单项选择题 Moving of an anchor over the sea bottom to control the movement of the vessel defines().

单项选择题 Pan-Pan is to be used to announce().

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