A.MF/HF
B.SART
C.EPIRB
D.any of A, B, C
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A.only automatically
B.only manually
C.both automatically and manually
D.only by remote control
A.be damaged
B.work normally regardless of harmful conditions
C.not wok though it is not in a bad condition
A.COSPAS-SARSAT
B.SATELLITE
C.terrestrial radio
D.INMARSAT
A.RCC
B.MCC
C.LUT
D.MRCC
A.distress alerting
B.locating 406mhz EPIRBs
C.storing distress signal
D.A and B
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What following is not among the function of SOLAS ships?（）
Before GMDSS, if the radio officer on board is serious ill,（）.
（）will form the basis for distress alerting and safety calling.
Every lifeboat which is fitted with a fixed two-way vhf radiotelephone apparatus with（）which is separately mounted shall be provided with arrangements for sitting and securing the antenna effectively in its operating position.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
（）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.
Please use（）for（）.
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.
Radio communication（）for many years and helps to save tens of thousands of lives.
We consider（）send a helicopter with medical facilities to the distress area.