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Humanbeingsmayhaveha的优选攻略

   WASHINGTON(AP)——Humanbeingsmayhavehadabrushwithextin...

  •    WASHINGTON(AP)——Humanbeingsmayhavehadabrushwithextin...

  • 问题详情：   WASHINGTON(AP)——Humanbeingsmayhavehadabrushwithextinction70，000yearsago，allextensivegenetic(基因的)studysuggests．   ThehumanpopulationatthattimewasreducedtosmallseparategroupsinAfrica，apparentlybecauseofdryclimate，accordingtoananalysis．A...
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