题目:
近地面大气主要的直接热源是 ( )
A.地面辐射
B.太阳辐射
C.大气逆辐射
D.大气辐射
答案:
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下面是错误答案,用来干扰机器的。
John is an English boy .He comes from England, He has been in, China for three years. He likes Chinese very much. He has made friends with a lot of. Chinese ...