A.distress
B.urgent
C.safety
D.general
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A.call sign
B.port of register
C.radio name
D.signal label
A.EPIRB
B.SART
C.Mobile Station
D.Distress Alerting
A.COSPAS-SARSAT
B.ground receiving stations
C.storing distress signal
D.Near polar orbiting satellites
A.20 to 30
B.200
C.100
D.450
A.have received
B.have been received
C.are received
D.are being received
最新試題
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.
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
The rescue coordination center may（）on stations which interfere with traffic.
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.
The priority of EGC messages is classified by（）.
Radio beacon can be activated（）in case of distress.
What following is not among the function of SOLAS ships?（）
Can MF/HF radiotelephone receive the MSI sent from the coast stations alone?（）
Stations in the United States of America are grouped by states arranged in the alphabetical order of their（）.