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智力残疾 (ＭｅｎｔａｌｒｅｔａｒｄａｔｉｏｎＭＲ)的病因主要由遗传和环境两大因素引起 ,近年来人们对环境因素日益重视。为查明湖南株洲攸县某村ＭＲ高发的原因 ,避免ＭＲ继续发生 ,本文对该村进行了系列研究。现将研究结果报告如下。1 研究对象和方法1 1 研究对象 全村
The causes of mental disability (MentalretardationMR) are mainly caused by the two major factors of heredity and environment. In recent years, people attach more importance to environmental factors. In order to find out the cause of high incidence of MR in a village in Youxian County, Zhuzhou, Hunan to avoid the occurrence of MR, this article conducted a series of researches on this village. The research results are reported below. 1 research objects and methods 1 1 research object whole village