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.enter the system / contact an RCC
B.access to INMARSAT / establish contact with a CES
C.have absolute priority to enter the system / make contact with a CES
D.enter the system gradually / wait for rescue
A.easy and expensive
B.simple and certain
C.dangerous and stable
D.difficult and compulsory
A.1980
B.1981
C.1979
D.1982
A.assist
B.send a rescue vessel
C.search the distress area
D.reach the distress position at once
A.alternation
B.alternate
C.alter
D.alternative
最新試題
The vessel has stayed in port for seven days because she needs（）.
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.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Radio beacon can be activated（）in case of distress.
COSPAS-SARSAT is intended to be used for（）.
What following is not among the function of SOLAS ships?（）
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
On-scene communications will normally take place between（）.
（）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.