相关题目
The general characteristics of unstable air are （ ） ．
Clouds, fog, or dew will always form when （ ） ．
What is a characteristic of stable air?
The characteristics of stable air are （ ） ．
（ ） are said to be weather signposts in the sky. They provide a visible indication of the processes occurring in the atmosphere.
If the field elevation is 5,000ft, and the temperature is 14℃, at what altitude will the freezing level (0℃) be encountered?
With a standard surface temperature, estimate the temperature at 10,000ft to be （ ） ．
The combined effects of （ ） determine the stability of the air and, to a large extent, the type of weather produced.
The feature associated with a temperature inversion is （ ） ．
The most frequent type of ground or surface-based temperature inversion is that produced by （ ） ．
