A.On the starboard quarter，hold course and make as much way as possible
B.2 points on the port quarter，and make as much way as possible
C.On the port bow，and make as much way as possible
D.Dead ahead and heave to
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A.West or northwest
B.Northeast
C.Southeast
D.North
A.forest fires
B.smoke from industrial areas
C.dust or sand storms
D.water droplets with the relative humidity more than 95%
A.low barometric pressure
B.high barometric pressure
C.falling barometric pressure
D.pumping barometric pressure
A.Is 50% water saturated
B.Is 90% water saturated
C.Temperature is greater than the dew point temperature
D.Temperature is equal to，or below the dew point temperature
A.Distance a wave travels between formation and decay
B.Stretch of water over which a wave-forming wind blows
C.Time in seconds required for two crests to pass a given point
D.Measurement of a wave's steepness
最新試題
When your vessel is on or near the path of an approaching tropical storm the（）.
Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
The direction of prevailing winds in the Northern hemisphere is caused by the（）.
Steady precipitation is typical of（）．
In the Northern Hemisphere，an observer at point II in the weather system should experience a wind shift from the（）.
What is the first visible indication of the presence of a tropical cyclone or hurricane（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
The strong wind will make us（）here for some days.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.