discove的精选

问题详情：Followingnewsofthepotentialforlifeontherecently-discoveredTRAPPIST-1system,theremaybeanothercompetitorreadytotakeitsplace. WiththehelpoftheCassinispacecraft,NASA(NationalAeronauticsandSpaceAd...

问题详情：      Scientistsaredebatinghowtolimittheirnewly-discoveredpowertochangegeneticstructure.Scientistsalreadymodifythegenesoffarmanimalsandagriculturalplantstomakethemmoreproductiveorstronge...