A.rain
B.high
C.layer
D.cirrus
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A.Rising clouds
B.Lowering clouds
C.Thickening clouds
D.Scattering clouds
A.Humidity
B.Temperature
C.Precipitation
D.Wind
A.Humidity
B.Temperature
C.Precipitation
D.Wind
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
最新試題
What is it called when it is possible to ignite the vapour above the oil?（）
Fog is likely to occur when there is little difference between the dew point and the（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
Manoeuvring information can not be obtained from（）.
Bales close to the deckhead should be covered to prevent（）.
The helm command PORT TWENTY means（）.
ECDIS must be able to perform all of the following EXCEPT（）.
The dew point temperature is（）.
When the wave period and the apparent rolling period are the same（）.