A.Navigational broadcast
B.weather forecast
C.Urgency message
D.Maritime Safety Information
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A.Lifeboat
B.A survival craft
C.An EPIRB
D.A SART
A.COSPAS-SARSAT
B.Ground receiving stations
C.storing distress signal
D.Near-polar orbiting satellites
A.essential
B.compulsory
C.optional
D.inadvisable
A.Satellite network
B.Satellite link
C.GMDSS
D.Satellite system
A.easy/reliable
B.difficult/cheap
C.stable/compulsory
D.easy/expensive
最新試題
We consider（）send a helicopter with medical facilities to the distress area.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
Radio beacon can be activated（）in case of distress.
On-scene communications will normally take place between（）.
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.
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.
Every lifeboat which is fitted with a fixed two-way（）radiotelephone apparatus with an antenna which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
Ship-to-ship distress alerting should be conducted by（）.
At least two two-way VHF radiotelephone apparatus shall be provided on every cargo ship of（）tons gross tonnage and upwards but less than 500 tons gross tonnage.