Todayweusenumbersver的精选

问题详情：阅读理解；根据短文内容，选择最佳*Todayweusenumbersveryoften.Buthaveyoueverthoughtaboutnumbers?Wethinkthatcountingiseasy.Butitwasnoteasylongago.Peopledidn’tknowhowtocount.Whentheyhadtocounttheirco...