A.Radio link
B.Space segment
C.Satellite link
D.upper link
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A.a terrestrial MF system
B.a satellite communication system
C.a land HF radio system
D.a coastal VHF system
A.Russian
B.French
C.English
D.German
A.transmit distress signal
B.send response signal
C.transmit the signal of ship‟s position
D.be start by X-band radar
A.consists of
B.is consisted of
C.consisted of
D.are consisted of
A.urgent traffic
B.distress alert
C.routine traffic
D.NAVTEX message
最新試題
What following is not among the function of SOLAS ships?（）
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.
Ship-to-ship distress alerting should be conducted by（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
By using（）system a ship can send a distress message and know with certainty it will be received.
The advantage of geostationary satellites is（）.
As each MSI message will have a unique identity, the printing of messages already received correctly is（）.
The rescue coordination center may（）on stations which interfere with traffic.
We consider（）send a helicopter with medical facilities to the distress area.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.