单项选择题

The WWNWS establishes three types of navigational warning:（）.

A.Distress, Urgency and Safety
B.Vital, Important and Routine
C.NAVAREA, Coastal and local
D.gale, Tsunami and Ice

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单项选择题

Every ship must fitted with（）SART, and（）two-way VHF radio telephone.

A.1,2
B.2,3
C.2,1
D.3,2

单项选择题

In INMASAT-A service code 32（）.

A.medical assistance
B.medical advise
C.maritime assistance
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单项选择题

To establish a communication channel for the telex service in the INMARSAT-A terminal, you should first（）.

A.establish a communication channel from the CES, via the International Telex network to the final destination
B.set up a communication channel from your SES, via a satellite, to a CES within your ocean region
C.set up a channel directly to the addressee at the destination
D.establish a channel from your terminal, via the International telex network to a CES within your ocean region