单项选择题
A.steady rainfall B.hail storms C.thunderstorms D.tornadoes or waterspouts
After a cold front passes，the barometric pressure（）.A.d...
单项选择题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
After a cold front passes the barometric pressure usual...
单项选择题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
A WIND BLOWS ROUND ANTICLOCKWISE defines（）.A.Backing (o...
单项选择题A WIND BLOWS ROUND ANTICLOCKWISE defines（）.
A.Backing (of wind) B.Beach (to) C.Veering (of wind) D.Maintaining direction of the wind
