【摘要】 讨论了铅对脑发育期中枢神经系统的影响 ,并调查了 3 0名学习困难、成绩差的学龄儿童血铅的含量情况。结果表明 ,血铅含量与智力有一定关系更多还原

【Abstract】 The effects of lead on nervous system during brain growth was discussed.The content of lead in blood to 30 students was investigated.The result showed the children with high blood lead had difficulties in study.Lead content in blood was connected with the intelligence.更多还原