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Kellman Kellman
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8 years ago
When do infants first laugh?
a.   at about a month of age
b.   about a month after the first social smile
c.   about a month after getting their first tooth
d.   about a month after their first birthday
Textbook 
Child Development: A Cultural Approach

Child Development: A Cultural Approach


Edition: 1st
Authors:
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randis_oddyrandis_oddy
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8 years ago
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Kellman Author
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#2
8 years ago
Just want to give you some feedback, your answer was right! Awesome
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