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
Full details of all lights and fog signals are shown on（）.
Before any loading takes place any signs of the previous cargo should do（）.
What is it called when it is possible to ignite the vapour above the oil?（）
The dew point temperature is（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
According to the relevant regulation, lifeboat should be powered by（）.
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（）.
The ISM code is part of（）.
Which of the following is not an operation mode of AIS?（）
The circulation around a low pressure center in the Northern Hemisphere is（）.