Notlongago,peoplethoughtbabieswerenotabletolearnthingsu...
問題詳情：Notlongago,peoplethoughtbabieswerenotabletolearnthingsuntiltheywerefiveorsixmonthsold.YetdoctorsintheUnitedStatessaybabiesbeginlearningontheirfirstdayoflife． Scientistsnotethatbabies...