A.radio-telephony, DSC, Direct Printing Telegraphy,Navtex and SART
B.INMARSAT, DSC, Direct Printing Telegraphy, Navtex and SART
C.radio-telephony,DSC,EPLRB,Navtex and SART
D.Status Recording system,DSC,Direct Printing Telegraphy, Navtex and SART
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B.urgency message
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最新試題
Full details of all lights and fog signals are shown on（）.
What is it called when it is possible to ignite the vapour above the oil?（）
The circulation around a low pressure center in the Northern Hemisphere is（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
The dew point temperature is（）.
A tide is called diurnal when（）.
Manoeuvring information can not be obtained from（）.
Berthing means bringing a vessel to her berth until（）.
The ISM code is part of（）.