A.Strong low pressure
B.Strong high pressure
C.Steep pressure gradient
D.Steep gradient pressure
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A.temperature
B.dew point
C.wind velocity
D.relative humidity
A.Variable
B.Changing
C.Backing
D.Veering
最新試題
Two well-developed high pressure areas may be separated by a（）.
In the relatively calm area near the hurricane center，the seas are（）.
In regions near the poles，the winds are generally described as（）.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
The doldrums are characterized by（）.
When experiencing heavy winds，you should reef sails to（）.
The passing of a low pressure system can be determined by periodically checking the（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.