Scientistshavedevisedawaytodetermineroughlywhereaperson...
問題詳情：Scientistshavedevisedawaytodetermineroughlywhereapersonhaslivedusingastrand(縷)ofhair,atechniquethatcouldhelptrackthemovementsofcriminalsuspectsorunidentifiedmurdervictims.Themethodreliesonmea...