- 问题详情:Theaveragebear,itseems,isgettingevert,itturnedoutthatatleastonecanuseacomb.Nowitappearsthatsomecancount,too.JenniferVonk,ofOaklandUniversity,inMichigan,andMichaelBeran,fromGeorgiaStateUniversity,setthreeAmericanblackbearsthetaskofdistinguishi...
- 4073