单项选择题
A.higher than normal swells B.high winds C.winds veering from south，through west，to northwest D.light showers
（）causing strong winds and rough sea north west Bay of ...
单项选择题（）causing strong winds and rough sea north west Bay of Biscay.
A.Strong low pressure B.Strong high pressure C.Steep pressure gradient D.Steep gradient pressure
Isobars on a synoptic chart are useful in predicting（）....
单项选择题Isobars on a synoptic chart are useful in predicting（）.
A.temperature B.dew point C.wind velocity D.relative humidity
When a wind blows round clockwise，it is（）.A.VariableB.C...
单项选择题When a wind blows round clockwise，it is（）.
A.Variable B.Changing C.Backing D.Veering
