Therearemanypeoplewh的精選

問題詳情：TherearemanypeoplewhosayThomasEdisoninventedthetwentiethcentury.Althoughtherearethosewhomaydisagree,yetEdisonwasoneofthegreatestinventorsinAmerica.      Bornin1847inOhio,ThomasEdisonatte...