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Scientistshavealwayswantedtoknowmoreabouttheunivers...
问题详情: Scientistshavealwayswantedtoknowmoreabouttheuniverse(宇宙)Yearsagotheyknewmanythingsaboutthemoon.theyknewhowbigitwasandhowfarawayitwasfromtheearth,buttheywantedtoknowmoreaboutit.Theyth...