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，an observer at point II in the weather system should experience a wind shift from the（）.
The southeast trade winds actually blow toward the（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
MIST is caused by（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
You have determined that you are in the right semicircle of a tropical cyclone in the Northern Hemisphere.What action should you take to avoid the storm（）.
The force resulting from the earth’s rotation that causes winds to deflect to the right in the Northern Hemisphere and to the left in the Southern Hemisphere is called（）.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.
In the relatively calm area near the hurricane center，the seas are（）.
Which type of precipitation is a product of the violent convection found in thunderstorms（）.