When crossing a front,isobars tend to().

A . change from smooth curves within the air mass to sharp bends at the front B . change from sharp bends within the air mass to smooth curves at the front C . pass smoothly across the front with no change D . become closer together at the front and pass through in straight line

时间:2022-09-28 20:19:51 所属题库:航海英语综合练习题库

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