- 問題詳情:Theaveragebear,itseems,isgettingevert,itturnedoutthatatleastonecanuseacomb.Nowitappearsthatsomecancount,too.JenniferVonk,ofOaklandUniversity,inMichigan,andMichaelBeran,fromGeorgiaStateUniversity,setthreeAmericanblackbearsthetaskofdistinguishi...
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