The feature associated with a temperature inversion is _______ .
A.an unstable layer of air
B.a stable layer of air
C.air mass thunderstorms
D.clear air turbulence
正确答案是B
The feature associated with a temperature inversion is _______ .
A.an unstable layer of air
B.a stable layer of air
C.air mass thunderstorms
D.clear air turbulence
正确答案是B