- 问题详情:NewresearchshowssheeparecleverPeopleoftenmakejokesabouthowdullsheepare,butnewresearchshowstheymaybeclevererthanwethink.ResearchersattheUniversityofCambridgediscoveredthatWelshmountainsheephavebrainpowerthatequalsrodents(啮齿动物).Testsfoundth...
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