A.Low cl;ouds
B.High clouds
C.Special clouds
D.medium clouds
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A.Cirrostratus
B.Cirrus
C.Cirrocumulus
D.Altostratus
A.Cirrostratus
B.Cirrus
C.Cirrocmulus
D.Altostratus
A.Tides
B.Sea
C.Swell
D.Wind
A.Falling barometric pressure
B.Rising barometric pressure
C.The circulations of winds
D.The change of wind direction
A.The persence of cirrus clouds
B.The low-hanging stratus clouds
C.The altocumulus clouds
D.The massive cumulus clouds
最新試題
Manoeuvring information can not be obtained from（）.
Bales close to the deckhead should be covered to prevent（）.
The ISM code is part of（）.
The helm command PORT TWENTY means（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
How long are you prohibited to consume alcohol prior to serving as a member of a watch?（）
According to the relevant regulation, lifeboat should be powered by（）.
Which of the following is not an operation mode of AIS?（）
Before any loading takes place any signs of the previous cargo should do（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.