A.indicate the ship in distress that the alert has been received
B.alert ships in the area of a distress incident that a distress has occurred
C.inform other coast station of distress incident
D.repeat the distress alert in 5 minutes
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A.component
B.supportable
C.combined
D.complimentary
A.local-mode coverage
B.SAR operations
C.data process
D.continuous broadcast
最新試題
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
On-scene communications will normally take place between（）.
If the beacon is mounted at a wrong place, it may（）by sea water, chemicals, exhaust and vibrations.
We consider（）send a helicopter with medical facilities to the distress area.
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.