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
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A.an EGC receiver only
B.a satellite communication system
C.a HF radio system
D.a VHF with DSC system
A.English/all distress communications
B.Chinese/some distress calls
C.the language decided by Administration/all distress calls
D.Japanese/some distress alerts
A.countries
B.states
C.names
D.groups
A.200
B.300
C.400
D.800
A.a dummy antenna
B.a supporting facilities
C.a back-up equipment
D.an antenna
最新試題
（）by an ice-breaker, it is important to maintain a continuous listening watch on the appropriate VHF channel and to maintain a proper look-out for sound and visual signals.
The priority of EGC messages is classified by（）.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
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.
The rescue coordination center may（）on stations which interfere with traffic.
（）will form the basis for distress alerting and safety calling.
The advantage of geostationary satellites is（）.
Every ship constructed on or after（）shall comply with all the applicable requirements of this chapter.
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.