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1·Childhood autism is viewed as a pervasive developmental disorder (PDD), marked by deficits in social interaction, speech development, living skills, perceptual skills and maladjusted behavior.

儿童孤独症是一种广泛性发育障碍，孤独症患儿存在着社会交往、言语发育、生活自理能力的缺陷，感知觉异常及一些问题行为。