A.518
B.2182
C.156.8
D.2187.5
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A.1 February 1995
B.1 February 1992
C.1 July 1997
D.1 February 1999
A.MF/HF
B.SART
C.EPIRB
D.any of A, B, C
A.only automatically
B.only manually
C.both automatically and manually
D.only by remote control
A.be damaged
B.work normally regardless of harmful conditions
C.not wok though it is not in a bad condition
A.COSPAS-SARSAT
B.SATELLITE
C.terrestrial radio
D.INMARSAT
最新試題
We consider（）send a helicopter with medical facilities to the distress area.
Please use（）for（）.
By using（）system a ship can send a distress message and know with certainty it will be received.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
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.
All coast radio stations（）DSC installed for VHF and HF.
The priority of EGC messages is classified by（）.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.