A.cannot
B.are not allowed
C.have the right
D.should get permission to
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A.every two years
B.every three years
C.every year
D.every four years
A.the radio regulations
B.the technical terms and definitions
C.how to operate the GMDSS SES equipment
D.Maritime Communications
A.alphabetical
B.figure
C.name of stations
D.series
A.radio direction-finding apparatus
B.DSC
C.NAVTEX
D.EPIRB
A.871
B.872
C.873
D.874
最新試題
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
The rescue coordination center may（）on stations which interfere with traffic.
The vessel has stayed in port for seven days because she needs（）.
What following is not among the function of SOLAS ships?（）
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.
All coast radio stations（）DSC installed for VHF and HF.
Radio communication（）for many years and helps to save tens of thousands of lives.
Ship-to-ship distress alerting should be conducted by（）.