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 loading of the ship must be done in accordance with（）.
The helm command PORT TWENTY means（）.
When steering by autopilot,how often should the steering be checked?（）
Which of the following shall not the officers in charge of the navigational watch do?（）
The company should establish and maintain procedures to control all documents and date which are relevant to（）.
Your vessel is docking, but not yet alongside. Which line will be the most useful when maneuvering the vessel alongside the pier?（）.
Despite the rising importance and great convenience of the gyrocompass,the magnetic compass still retain its importance because of its（）.
Where would you find information about the time of high tide at a specific location on a particular day of the year?（）
Full details of all lights and fog signals are shown on（）.
According to the relevant regulation, lifeboat should be powered by（）.