单项选择题
It is required that ships proceeding at sea should keep continuous watch on（）.
A.VHF channel16 and 13
B.appropriate DSC distress and safety frequency
C.INMARSAT TDM message channel
D.VHF channel 70 and channel 8
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相关考题
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单项选择题
The transmission of a（）indicates that a ship is in distress and requires immediate assistance.
A.urgent traffic
B.distress alert
C.routine traffic
D.NAVTEX message -
单项选择题
A ship station on receiving a shore-to-ship distress alert should（）.
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 -
单项选择题
Ship-to-ship distress alerting should be conducted by（）.
A.INMARSAT SES
B.VHF/DSC or MF/DSC
C.SART and VHF/DSC
D.satellite EPIRB and VHF/DSC
