A.Steady，light to moderate winds
B.Frequent calms
C.Clear skies
D.Low humidity
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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%
A.clockwise direction
B.northeasterly direction
C.northerly direction
D.counterclockwise direction
最新試題
Two well-developed high pressure areas may be separated by a（）.
Which of the following is not a wind（）.
When your vessel is on or near the path of an approaching tropical storm the（）.
In regions near the poles，the winds are generally described as（）.
Monsoons are characterized by（）.
What kind of conditions would you observe as the eye of a storm passes over your ship’s position（）.
In the relatively calm area near the hurricane center，the seas are（）.
Tropical cyclones are classified by form and intensity.Which system does not have closed isobars（）.
Which type of precipitation is a product of the violent convection found in thunderstorms（）.
Steady precipitation is typical of（）．