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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Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.
On-scene communications will normally take place between（）.
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
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.
All coast radio stations（）DSC installed for VHF and HF.
COSPAS-SARSAT is intended to be used for（）.
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.
（）will form the basis for distress alerting and safety calling.
The quality of EGC messages is（）affected by the position of the ship, the time of reception and climatic conditions.