A.55.5 W
B.180E
C.15.5W
D.64.5E
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A.one means, whether satellite or terrestrial techniques
B.two means, whether satellite or terrestrial techniques
C.two separate and independent means, each using different radio communication services
D.two means, such as MF DSC and HF DSC
A.satellite /terrestrial system
B.INMAARSAT/COSPAS-SARSAT
C.SART / EPIRB
D.geostationary/polar-orbiting satellites
A.enable SAR operations to start with minimum delay
B.give facilities to marine communication
C.reduce sharply the chances of ship’s sinking
D.both A and C
A.occasionally
B.accidentally
C.often
D.usually
A.keep
B.kept
C.are keeping
D.have kept
最新試題
On-scene communications will normally take place between（）.
We consider（）send a helicopter with medical facilities to the distress area.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
Radio beacon can be activated（）in case of distress.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
SOLAS ships shall be equipped with（）.
The rescue coordination center may（）on stations which interfere with traffic.
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.