单选题The type of fog that occurs on clear nights with very light breezes and forms when the earth cools rapidly by radiation is known as（）.ARadiation fogBFrontal fogCConvection fogDAdvection fog
单选题
The type of fog that occurs on clear nights with very light breezes and forms when the earth cools rapidly by radiation is known as（）.
A
Radiation fog
B
Frontal fog
C
Convection fog
D
Advection fog
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