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The boundary between airmasses is called a _______ .
2023-12-26 21:28:07
英语
The boundary between airmasses is called a _______ .
A.ridge
B.squall line
C.front
D.trough
正确答案是C
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An air mass is a body of air that _______ .
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When the A/C flies from one airmass into another, an airmass wit