A.one means, whether satellite or terrestrial techniques
B.two means, whether satellite or terrestrial techniques
C.two separate and independent means, each using different radio communication services
D.two means, such as MF DSC and HF DSC
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A.satellite /terrestrial system
B.INMAARSAT/COSPAS-SARSAT
C.SART / EPIRB
D.geostationary/polar-orbiting satellites
A.enable SAR operations to start with minimum delay
B.give facilities to marine communication
C.reduce sharply the chances of ship’s sinking
D.both A and C
A.occasionally
B.accidentally
C.often
D.usually
A.keep
B.kept
C.are keeping
D.have kept
A.has made
B.make
C.has been made
D.is making
最新試題
The rescue coordination center may（）on stations which interfere with traffic.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
By using（）system a ship can send a distress message and know with certainty it will be received.
Ship-to-ship distress alerting should be conducted by（）.
Radio beacon can be activated（）in case of distress.
Please use（）for（）.
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.
COSPAS-SARSAT is intended to be used for（）.
We consider（）send a helicopter with medical facilities to the distress area.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.