- 问题详情:Asummaryofthephysicalandchemicalnatureoflifemustbegin,notontheearthbutinthesun;infact,atthesun’sverycenter.Itisherethatistobefoundthesourceoftheenergythatthesunconstantlypoursoutintospaceaslightandheat.Thisenergyisliberatedatthecenterofthesunasbi...
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