A.High pressure area
B.Extratropical low-pressure system
C.Tropical storm
D.Easterly wave
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A.a high pressure area
B.an extratropical cyclone
C.a tropical storm
D.an easterly wave
A.High pressure
B.Low pressure
C.Subsurface pressure
D.Terrastatic pressure
A.Huge waves approaching from all directions，clearing skies，light winds，and an extremely low barometer
B.Flat calm seas，heavy rain，light winds，and an extremely low barometer
C.Flat calm seas，heavy rain，light winds，and high pressure
D.Huge waves approaching from all directions，clearing skies，light winds，and high pressure
A.Stratocumulus clouds or strange birds
B.Rain and increasing winds
C.An exceptionally long swell
D.Dark clouds and the“bar”of the storm
A.Hill of low pressure
B.Trough of low pressure
C.Valley of low pressure
D.Ridge of low pressure
最新試題
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
If you observe the point of cloud convergence shifting to the right and the “bar”of the storm appears to move along the horizon（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.
In the relatively calm area near the hurricane center，the seas are（）.
What kind of pressure systems travel in easterly waves（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
The wind is（）and decreasing.