A.adherence to
B.adoption to
C.relaying on
D.usage of
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A.keep silence
B.forbid transmission
C.change information
D.impose
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
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What following is not among the function of SOLAS ships?（）
SafetyNet is an international service for the broadcast and automatic reception of MSI by means of direct-printing through（）system.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.
Ship-to-ship distress alerting should be conducted by（）.
Radio beacon can be activated（）in case of distress.
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 priority of EGC messages is classified by（）.
The vessel has stayed in port for seven days because she needs（）.
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.
Radiotelephony communication or radio telex communication or both will be carried out by terrestrial or satellite means,（）the equipment fitted on ship and the area in which the incident occurs.