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killian killian
wrote...
Silver Member
Posts: 6024
10 years ago
In cultural-familial retardation, the cause of the retardation is ______.
      a.   prenatal drug use by the mother
      b.   infection and high fever during infancy
      c.   ingestion of environmental toxins
      d.   not traceable to any biological source
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Smiling Face with Open Mouth
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Answer accepted by topic starter
f_zah1f_zah1
wrote...
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Posts: 10774
9 years ago
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