A.120/20
B.56/18
C.100/16
D.96/8
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A.VHF channel16 and 13
B.appropriate DSC distress and safety frequency
C.INMARSAT TDM message channel
D.VHF channel 70 and channel 8
A.urgent traffic
B.distress alert
C.routine traffic
D.NAVTEX message
A.keep silence
B.interfere with such communication
C.establish communication as directed and render such assistance as is required and appropriate
D.refuse communication as directed and render such assistance as it required and appropriate
A.INMARSAT SES
B.VHF/DSC or MF/DSC
C.SART and VHF/DSC
D.satellite EPIRB and VHF/DSC
A.coordinate in rescue operation
B.send rescue vessels
C.reach the area at once
D.conduct a sector search
最新試題
In case a ship is in emergency or distress in any of 4 areas, it is required to use the continuous（）alert.
Ship-to-ship distress alerting should be conducted by（）.
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.
The vessel has stayed in port for seven days because she needs（）.
Monitoring is especially important in a highly automated system which is dependent on careful（）procedure and format.
The frequency（）the safety message will be transmitted shall be included in DSC safety call.
（）will form the basis for distress alerting and safety calling.
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（）.
By using（）system a ship can send a distress message and know with certainty it will be received.