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
Which of the following is not a wind（）.
Two well-developed high pressure areas may be separated by a（）.
In the relatively calm area near the hurricane center，the seas are（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
What kind of pressure systems travel in easterly waves（）.
The direction of prevailing winds in the Northern hemisphere is caused by the（）.
Steady precipitation is typical of（）．
In regions near the poles，the winds are generally described as（）.
Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.