A.COSPAS-SARSAT
B.ground receiving stations
C.spacecraft
D.satellite SAR instrument
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A.anywhere in the world
B.at sea
C.in the air
D.ashore
A.1982
B.1980
C.1984
D.1988
A.alerting
B.on-scene communication
C.safety information
D.general communication
A.sometimes
B.all times
C.never
D.partly
A.to avoid mutual interference
B.to keep silence
C.owing to the time-share nature
D.to regulate transmitter power
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SOLAS ships shall be equipped with().
Radio beacon can be activated()in case of distress.
The priority of EGC messages is classified by().
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,()the equipment fitted on ship and the area in which the incident occurs.
We consider()send a helicopter with medical facilities to the distress area.
Before GMDSS, if the radio officer on board is serious ill,().
As each MSI message will have a unique identity, the printing of messages already received correctly is().
Particular care should be()in selecting CESs in areas where Ocean Regions overlap.
Please use()for().
()will form the basis for distress alerting and safety calling.