A.rain
B.high
C.layer
D.cirrus
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A.rain
B.high
C.layer
D.cirrus
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
最新試題
It is dangerous for vessels without the operational radar（）the estuary.
The helm command PORT TWENTY means（）.
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）
Fog is likely to occur when there is little difference between the dew point and the（）.
When the wave period and the apparent rolling period are the same（）.
Berthing means bringing a vessel to her berth until（）.
Manoeuvring information can not be obtained from（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
The dew point temperature is（）.
What is it called when it is possible to ignite the vapour above the oil?（）