- 问题详情:Whatdothreehearts,eightarms,andonehugebrainaddupto?Anoctopus—aseaanimalthatcandoamazingthings.Octopusesareverysmart.Theycanlearnnewthingsjustlikehumans.They’veevenlearnedafewskillstogetthemselvesoutofdangeroussituations.Octopusesdon’thavet...
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