A.someone else will take his place
B.the captain will take charge of his work
C.nobody will be capable of doing his work
D.anyone else will use the radio equipment
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A.receive shore-to-ship distress alerting
B.transmit ship-to-shore distress alerting
C.receive message for public correspondence
D.transmit and receive locating signals
A.an EGC receiver only
B.a satellite communication system
C.a HF radio system
D.a VHF with DSC system
A.English/all distress communications
B.Chinese/some distress calls
C.the language decided by Administration/all distress calls
D.Japanese/some distress alerts
A.countries
B.states
C.names
D.groups
A.200
B.300
C.400
D.800
最新試題
All coast radio stations（）DSC installed for VHF and HF.
International Navtex service means the coordinated broadcast and automatic reception on（）khz of maritime safety information by narrow-band direct-printing telegraphy using English language.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
Please use（）for（）.
The rescue coordination center may（）on stations which interfere with traffic.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Distress traffic is the communication（）between the station in distress and the ships, aircraft, coast radio stations, coast earth stations and rescue centers participating in the rescue work.
Radio beacon can be activated（）in case of distress.
（）will form the basis for distress alerting and safety calling.