英语翻译Theybabyisjustonedayoldandhasnotyetlefthospital.Sheisquietbutalert（警觉）.Twentycentimetersfromherfaceresearchershaveplacedawhitecardwithtwoblackspotsonit.Shestaresatitcarefully.Aresearcherremove

　　英语翻译

　　Theybabyisjustonedayoldandhasnotyetlefthospital.Sheisquietbutalert（警觉）.Twentycentimetersfromherfaceresearchershaveplacedawhitecardwithtwoblackspotsonit.Shestaresatitcarefully.Aresearcherremovesthecardandreplacesitbyanother,thistimewiththespotsdifferentlyspaced.Asthecardschangefromonetotheother,hergaze（凝视）startstoloseitsfocus-untilathird,withthreeblackspots,ispresented.Hergazereturns；shelooksatitfortwiceaslongasshedidatthepreviouscard.Canshetellthatthenumbertwoisdifferentfromthree,just24hoursaftercomingintotheworld?

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