单项选择题
MIST is caused by（）.
A.forest fires
B.smoke from industrial areas
C.dust or sand storms
D.water droplets with the relative humidity more than 95%
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相关考题
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单项选择题
In the Southern Hemisphere winds in a low pressure system rotate in a（）.
A.clockwise direction
B.northeasterly direction
C.northerly direction
D.counterclockwise direction -
单项选择题
In the relatively calm area near the hurricane center，the seas are（）.
A.moderate but easily navigated
B.calm
C.mountainous and confused
D.mountainous but fairly regular as far as direction is concerned -
单项选择题
In the Northern Hemisphere，when the wind at your location is northerly，the low pressure center causing the wind is located to your（）.
A.NNW
B.WSW
C.ESE
D.SSW
