A.Humidity
B.Temperature
C.Precipitation
D.Wind
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A.NAVETEX receiver
B.Search and Rescue Transponder
C.Emergency Position Indicating Radio Beacon
D.Digital selective calling
A.NAVETEX receiver
B.Search and Rescue Transponder
C.Emergency Position Indicating Radio Beacon
D.Digital selective calling
A.NAVETEX receiver
B.Search and Rescue Transponder
C.Emergency Position Indicating Radio Beacom
D.Digital selective calling
A.The echo sounder
B.The radar
C.The course recorder
D.The direction finder
A.The echo sounder
B.The radar
C.The course recorder
D.The direction finder
最新試題
Which of the following is not a form of precipitation?（）
It is dangerous for vessels without the operational radar（）the estuary.
The circulation around a low pressure center in the Northern Hemisphere is（）.
Before any loading takes place any signs of the previous cargo should do（）.
A tide is called diurnal when（）.
Full details of all lights and fog signals are shown on（）.
The helm command PORT TWENTY means（）.
Manoeuvring information can not be obtained from（）.
（）is where the crew eat their meals.
In the Northern hemisphere northerly winds may cause temperature（）.