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單項選擇題

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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單項選擇題

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

單項選擇題

（）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

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