A.55.5 W
B.180E
C.15.5W
D.64.5E
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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
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
最新試題
SOLAS ships shall be equipped with（）.
The rescue coordination center may（）on stations which interfere with traffic.
Please use（）for（）.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
Radio beacon can be activated（）in case of distress.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
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.
Particular care should be（）in selecting CESs in areas where Ocean Regions overlap.
All coast radio stations（）DSC installed for VHF and HF.
By using（）system a ship can send a distress message and know with certainty it will be received.