A.a high pressure area
B.an extratropical cyclone
C.a tropical storm
D.an easterly wave
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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
A.Hurricane
B.Tropical disturbance
C.Tropical depression
D.Cyclone
最新試題
In the relatively calm area near the hurricane center，the seas are（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
The wind is（）and decreasing.
When your vessel is on or near the path of an approaching tropical storm the（）.
The passing of a low pressure system can be determined by periodically checking the（）.
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（）.
In the Northern Hemisphere，the right half of the storm is known as the dangerous semicircle because（）.
The southeast trade winds actually blow toward the（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.