关于WASHINGTONAP的百科

•    WASHINGTON(AP)——Humanbeingsmayhavehadabrushwithextin...

• 问题详情：   WASHINGTON(AP)——Humanbeingsmayhavehadabrushwithextinction70，000yearsago，allextensivegenetic(基因的)studysuggests．   ThehumanpopulationatthattimewasreducedtosmallseparategroupsinAfrica，apparentlybecauseofdryclimate，accordingtoananalysis．A...
• 2019-09-2421694