- 问题详情:Followingnewsofthepotentialforlifeontherecently-discoveredTRAPPIST-1system,theremaybeanothercompetitorreadytotakeitsplace. WiththehelpoftheCassinispacecraft,NASA(NationalAeronauticsandSpaceAdministration)scientistshavepickedupthefirstevidenc...
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- 问题详情: Scientistsaredebatinghowtolimittheirnewly-discoveredpowertochangegeneticstructure.Scientistsalreadymodifythegenesoffarmanimalsandagriculturalplantstomakethemmoreproductiveorstronger.Butnowtheycanalsochangegenesinwildanimalsandplan...
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