- 問題詳情: Humansaresocialanimals.Theyliveingroupsallovertheworld.Asthesegroupsofpeopleliveapartfromothergroups,overtheyearsandcenturiestheydeveloptheirownhabitsandideas,whichformdifferentcultures.Oneimportantparticularsideofeverycultureishowitspeopledealw...
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