falls
rises
is steady
is unreliable
第1题：
Fog is most commonly associated with a(n) ______.
A.warm front at night
B.low pressure area
C.anticyclone
D.lack of frontal activity
第2题：
A decrease in barometric pressure is associated with all of the following except ______.
A.rising warm air
B.proximity to a low pressure area
C.inward spiraling circulation
D.clear dry weather
第3题：
Blood pressure usually falls in warm weather.()
第4题：
An occluded front is caused by a(n) ______.
A.low pressure area
B.high pressure area
C.area of calm air
D.cold front overtaking a warm front
第5题：
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
第6题：
On the approach of a warm front the barometric pressure usually ______.
A.falls
B.rises
C.is steady
D.is unreliable
第7题：
Which of the following statements concerning frontal movements is TRUE ________．
A.The temperature rises after a cold front passes
B.The barometric pressure rises when a warm front passes
C.A cold front generally passes faster than a warm front
D.A warm front usually has more violent weather associated with it than a cold front
第8题：
Cumulonimbus clouds are most likely to accompany a(n) ______.
A.high pressure system
B.cold front
C.warm front
D.occluded front
第9题：
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
第10题：
Brief, violent showers frequently accompanied by thunder and lightning are usually associated with ______.
A.passage of a warm front
B.winds shifting counterclockwise in the Northern Hemisphere
C.stationary high pressure systems
D.passage of a cold front