题目内容:
Onlyasmallpartofthesun'senergyreachestheearth'ssurfacebecausemostofitis__________.
A.absorbedbythecloudsintheloweratmosphere B.reflectedbythegasesintheupperatmosphere
C.lostintheupperandloweratmosphere
D.usedtoevaporatewaterfromtheoceansandlakes
参考答案:
答案解析: