A.keep silence
B.forbid transmission
C.change information
D.impose
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A.taken
B.take
C.took
D.taked
A.someone else will take his place
B.the captain will take charge of his work
C.nobody will be capable of doing his work
D.anyone else will use the radio equipment
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.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
最新試題
Before GMDSS, if the radio officer on board is serious ill,（）.
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
For COSPAS-SARSAT system,（）usually transmit initial COSPAS-SARSAT alert.
（）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.
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.
We consider（）send a helicopter with medical facilities to the distress area.
Radio beacon can be activated（）in case of distress.
The rescue coordination center may（）on stations which interfere with traffic.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.