单项选择题

A boundary between two air masses is a(n)（）.

A.lapse rate
B.isobar
C.front
D.continent

相关考题

（）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

航海气象基本知识