A.The message can be directed to the desired location
B.The message can follow the earth‟s curvature
C.The quality of message can not be affected by climatic
D.the range of the message extend and the quality of reception is improved
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A.are capable of following / distance
B.can follow / altitude
C.can hardly follow / shape
D.are unable following / angle
A.quick and good
B.convenient and certain
C.easily and simply
D.important and difficult
A.living standards
B.survival condition
C.chance of survival
D.technical specification
A.they all have different limitations with respect to coverage
B.they all have different limitations in the technology they use
C.different systems apply to different ships
D.all of above
A.Inmarsat-A
B.Inmarsat-B
C.Inmarsat-C
D.Inmarsat-F
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Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
COSPAS-SARSAT is intended to be used for（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
The advantage of geostationary satellites is（）.
Before GMDSS, if the radio officer on board is serious ill,（）.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
（）will form the basis for distress alerting and safety calling.