A.always move slowly
B.are in one place only
C.sometime move sometime don‟t move
D.are synchronizing with the movement of the earth
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A.receive shore-to-ship distress alerting
B.transmit ship-to-shore distress alerting
C.receive message for public correspondence
D.transmit and receive locating signals
A.can be overcome by using traditional techniques
B.can not be overcome by satellite system
C.can be overcome by satellite and digital techniques
D.can not be tackled by any modern system
A.assist
B.send a rescue
C.search the distress area
D.Reach the distress position at once
A.INMARSAT, EPIRB and DSC
B.NAVTEX, NBDP and R/T
C.INMARSAT, VHF and SART
D.EPIRB, DSC and radar
A.distress and safety radio communication purposes
B.life-saving purpose
C.GMDSS requirements
D.emergency position
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.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
The vessel has stayed in port for seven days because she needs（）.
We consider（）send a helicopter with medical facilities to the distress area.
The priority of EGC messages is classified by（）.
The rescue coordination center may（）on stations which interfere with traffic.
All coast radio stations（）DSC installed for VHF and HF.
Before GMDSS, if the radio officer on board is serious ill,（）.
Radio beacon can be activated（）in case of distress.
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.