A.Magnetic field at the North Pole
B.Gulf Stream
C.Earth's rotation
D.Arctic cold fronts
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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%
A.clockwise direction
B.northeasterly direction
C.northerly direction
D.counterclockwise direction
A.moderate but easily navigated
B.calm
C.mountainous and confused
D.mountainous but fairly regular as far as direction is concerned
最新試題
The moisture equilibrium chart can be used to determine the（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
When a hurricane passes into high latitudes over colder water and the source of heat is disrupted，the storm assumes the characteristics of（）.
Which condition indicates that you are in a hurricane’s dangerous semicircle in the Northern hemisphere（）.
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（）.
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 passing of a low pressure system can be determined by periodically checking the（）.
Monsoons are characterized by（）.
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
Which type of precipitation is a product of the violent convection found in thunderstorms（）.