儿童行为问题及其防治对策——３９２７名儿童行为问题调查分析刘贤臣郭传琴翟静刘同洲曹会龙计划生育、优生优育是我国的一项基本国策。由于这一国策的实施，独生子女在我国儿童中的比例逐年增加，城市目前几乎是１００％，全国农村也在７０％以上。独特的先天和后天环境... Children’s behavior problems and prevention and control measures - Investigation of 3927 children’s behavior problems Liu Xianchen Guo Chuanqin Zhai Jing Liu Tongzhou Cao Huilong Family planning and prenatal and postnatal care are one of China’s basic national policies. Due to the implementation of this national policy, the proportion of only children in China’s children has been increasing year by year. The urban area is now almost 100% and the number of rural children in the country is also above 70%. Unique natural and acquired environment ...