YouarewhatyoueatThis的精選

問題詳情：Youarewhatyoueat.Thissayinghasprovidedscientistswithcluesaboutthedietofhominids(原始人類)—ourearlyrelativesof3millionyearsago.   Studyingcarbonatoms(碳原子)lockedupintoothenamel(琺琅質),tw...