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
单项选择题 After a cold front passes the barometric pressure usually（）.
单项选择题 A WIND BLOWS ROUND ANTICLOCKWISE defines（）.
单项选择题 A weather map is a synoptic data because it（）.
