5-secondrule:what’sthetruth? Almosteveryonehasdroppedso...
问题详情：5-secondrule:what’sthetruth? Almosteveryonehasdroppedsomefoodonthefloorandstillwantedtoeatit.Ifsomeonesawyoudropit,heorshemighthaveshouted,“5-secondrule!”Thisso-calledrulesaysfoodisOKtoeat...