单项选择题
A steep barometric gradient indicates（）.
A.calms B.light winds C.strong winds D.precipitation
单项选择题 A katabatic wind blows（）.
单项选择题 A hurricane moving northeast out of the Gulf passes west of your position. You could expect all of the following EXCEPT（）.
单项选择题 （）causing strong winds and rough sea north west Bay of Biscay.
