A.Pressure gradient
B.Coriolis effect
C.Aurora borealis
D.Ballistic deflection
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A.Steady，light to moderate winds
B.Frequent calms
C.Clear skies
D.Low humidity
A.Magnetic field at the North Pole
B.Gulf Stream
C.Earth's rotation
D.Arctic cold fronts
A.Coming cold weather conditions
B.A warm front weather condition
C.High pressure conditions
D.Scattered cumulus cloudsduring the day
A.light，variable winds with little or no humidity
B.strong，gusty winds that blow from the same general direction all year
C.steady winds that reverse direction semiannually
D.strong，cyclonic winds that change direction to conform to the passage of an extreme low pressure system
A.forest fires
B.smoke from industrial areas
C.dust or sand storms
D.water droplets with the relative humidity more than 95%
最新試題
Which of the following is not a wind（）.
Steady precipitation is typical of（）．
Wen a hurricane passes over colder water or land and loses its tropical characteristics，the storm becomes a（n）（）.
Which condition suggests that your present position lies in the navigable semicircle of a tropical storm（）.
Your facsimile prognostic chart indicates that you will cross the cold front of a low pressure system in about 24 hours.You should（）.
Monsoons are characterized by（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
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，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.