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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 > GMDSS

单项选择题

All ships which, in accordance with the present Convention, are required to carry radio installations shall carry（）.

A.Q-code
B.Telephone numbers and addresses
C.the international Codes of Signals
D.radio instructions

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单项选择题

Digital Selective Calling means a technique using（）which which enables a radio station to establish contact with, and transfer information to another station or group of stations and complying with the relevant recommendations of the CCIR.

A.digital codes
B.code messages
C.norse codes
D.distress messages

单项选择题

（）means a technique using digital codes which enables a radio station to establish contact with, and transfer information to another station or group of stations and complying with the relevant recommendations of the CCIR.

A.DSC
B.MSI
C.EGC
D.NBDP

单项选择题

（）means navigational and meteorological warnings, meteorological forecasts and other urgent related messages broadcast to ships.

A.Navigational broadcast
B.weather forecast
C.Urgency message
D.Maritime Safety Information

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