单选题Questions 37-40 Complete the
summary using the list of words, A-G, below. A species, B
average, C female caregivers, D gender, E human template, F monkey, G sounds
Several studies have examined the ways in which infants perceive faces. Some
researchers found that the facial type which infants are most attracted to is
that which most closely resembles the {{U}} {{U}} 11 {{/U}}
{{/U}}face type. Others found that infants are able to copy adult expressions from
birth. Both these findings could mean that infants have an innate knowledge of
the human face. On the other hand, as well as being able to classify faces
according to {{U}} {{U}} 12 {{/U}} {{/U}} it appears that
young infants can tell the difference between faces of other {{U}} {{U}}
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perception with age could mean that infants' brains gradually adapt to the
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