目的观察言语治疗对发育迟缓儿童智力的影响。

Objective To observe the effect of speech therapy on the intelligence of children with developmental retardation of speech.

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但是，新的研究还发现没有患有自闭症的20%兄妹们在孩童时，曾经被诊断为语言迟缓或言语问题。

But the new study also found that 20 percent of siblings who did not have autism had been diagnosed with language delay or speech problems early in life.

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言语残疾类型中，语言发育迟缓所占比例最高，达42.55％；

The rate of language hypoevolutism was 42.55%, that was the highest in all types of speech disability.

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