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![Forseveralbillionyearsafterthe“BigBang”,theearthwassti...]( "Forseveralbillionyearsafterthe“BigBang”,theearthwassti...")
Forseveralbillionyearsafterthe“BigBang”,theearthwassti...
问题详情： Forseveralbillionyearsafterthe“BigBang”,theearthwasstilljustacloudofdust.Whatitwasto______(36)wasuncertainuntilbetween4.5and3.8billionyearsagowhenthedustsettledintoasolidglobe.Theearthbeca...
