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efesto efesto
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7 years ago
Which of the following emerges first?
A) laughter in response to physical stimulation
B) laughter in response to psychological stimulation
C) social smiles
D) smiles that are related to internal physiological states
Textbook 
Children: A Chronological Approach, Canadian Edition

Children: A Chronological Approach, Canadian Edition


Edition: 5th
Authors:
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#1
7 years ago
D) smiles that are related to internal physiological states
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