13. At what age do infants first show specific bonds? When is separation distress first evident?(A)
問題詳情
13. At what age do infants first show specific bonds? When is separation distress first evident? (A) at birth； 8 montbs (B) at birth； 12 months (C) 6-7 months； 8 months (D) 6-7 months 12 months