Howoldis的精選

問題詳情：Howoldis“old”?Theanswerhaschangedovertheyears.TwoHundredyearsago,youwereoldat35.Atthebeginningofthe20thcentury,theaveragelifespan(平均壽命)was45.In1950,70-year-oldswerereallyold.Today，ahealth...

問題詳情：閱讀理解Howoldis“old”?Theanswerhaschangedovertheyears.Twohundredyearsago,youwereoldat35.Atthebeginningofthe20thcentury,theaverage(平均)lifespan(跨度)was45.In1950，70-year-oldswerereallyold.Tod...