Ifthesunhasenoughpowertowarmandlightthewholeearth,itmus...
问题详情：Ifthesunhasenoughpowertowarmandlightthewholeearth,itmusthaveenoughpowertodootherthings,too.Canweusethesun'sabundantenergytosupplyelectricity,oratleasttoperformthefunctionswhichelectricityorot...