單項(xiàng)選擇題After a cold front passes,the barometric pressure().

A.drops,and the temperature drops
B.drops,and the temperature rises
C.rises,and the temperature drops
D.rises,and the temperature rises


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1.單項(xiàng)選擇題After a cold front passes the barometric pressure usually().

A.fluctuates
B.remains the same
C.remains the same,with clouds forming rapidly
D.rises,often quite rapidly,with clearing skies

2.單項(xiàng)選擇題A WIND BLOWS ROUND ANTICLOCKWISE defines().

A.Backing (of wind)
B.Beach (to)
C.Veering (of wind)
D.Maintaining direction of the wind

3.單項(xiàng)選擇題A weather map is a synoptic data because it().

A.summarizes a great deal of information
B.can be interpreted accurately
C.appears daily
D.is prepared by the Weather Bureau

4.單項(xiàng)選擇題A weather forecast states that the wind will commence backing. In the Northern Hemisphere,this would indicate that it will().

A.shift in a clockwise manner
B.shift in a counterclockwise manner
C.continue blowing from the same direction
D.decrease in velocity

5.單項(xiàng)選擇題A tropical wave is usually preceded by().

A.tropical storms
B.good weather
C.heavy rain and cloudiness
D.heavy seas