A.easy/reliable
B.difficult/cheap
C.stable/compulsory
D.easy/expensive
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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
A.COSPAS-SARSAT
B.ground receiving stations
C.spacecraft
D.satellite SAR instrument
A.anywhere in the world
B.at sea
C.in the air
D.ashore
A.1982
B.1980
C.1984
D.1988
最新試題
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.
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.
The priority of EGC messages is classified by（）.
The vessel has stayed in port for seven days because she needs（）.
We consider（）send a helicopter with medical facilities to the distress area.
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.
The advantage of geostationary satellites is（）.
（）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.
（）will form the basis for distress alerting and safety calling.