A.distress alert
B.urgency message
C.safety message
D.routine message
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A.low clouds
B.High clouds
C.Special clouds
D.medium clouds
A.Low cl;ouds
B.High clouds
C.Special clouds
D.medium clouds
A.Cirrostratus
B.Cirrus
C.Cirrocumulus
D.Altostratus
A.Cirrostratus
B.Cirrus
C.Cirrocmulus
D.Altostratus
A.Tides
B.Sea
C.Swell
D.Wind
最新試題
The helm command PORT TWENTY means（）.
The ISM code is part of（）.
A tide is called diurnal when（）.
What is a CORRECT reply to a pilot’s request, How’s your heading?（）
According to the relevant regulation, lifeboat should be powered by（）.
The dew point temperature is（）.
When steering by autopilot,how often should the steering be checked?（）
What is it called when it is possible to ignite the vapour above the oil?（）
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
Which wind results from a land mass cooling more quickly at night than an adjacent water area?（）