A.Satellite network
B.Satellite link
C.GMDSS
D.Satellite system
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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
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
最新試題
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
Radio communication（）for many years and helps to save tens of thousands of lives.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
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.
Before GMDSS, if the radio officer on board is serious ill,（）.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
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.
Please use（）for（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.