A.COSPAS-SARSAT
B.Ground receiving stations
C.storing distress signal
D.Near-polar orbiting satellites
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A.essential
B.compulsory
C.optional
D.inadvisable
A.Satellite network
B.Satellite link
C.GMDSS
D.Satellite system
A.easy/reliable
B.difficult/cheap
C.stable/compulsory
D.easy/expensive
A.MCC/LUT/RCC
B.LUT/MCC/RCC
C.LUT/RCC/MCC
D.LUT/RCC/LUT
A.at sea
B.on land
C.in the air
D.throughout the world
最新試題
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
The advantage of geostationary satellites is（）.
The rescue coordination center may（）on stations which interfere with traffic.
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.
（）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.
What following is not among the function of SOLAS ships?（）
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.