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曲麻莱县位于青藏高原腹地,青海省西南部,全县平均海拔4 500 m以上,属高原大陆性气候,全县总人口为24 200人,藏族人口占97.72%。现将该县7~12岁儿童硒、碘营养水平分析如下。1对象与方法1.1对象7~12岁在校学生。1.2采样方法发样采自儿童后枕部,质量为1.0 g;粮样采自儿童家中青
Qumalai County is located in the hinterland of the Qinghai-Tibet Plateau, southwest of Qinghai Province. The average elevation of the county is more than 4 500 m. It belongs to the plateau continental climate. The total population of the county is 24,200 and the Tibetan population is 97.72%. The county now 7 to 12-year-old children selenium, iodine nutrition levels are as follows. 1 objects and methods 1.1 objects 7 to 12-year-old school students. 1.2 sampling method Hair samples taken from the posterior occipital, the quality of 1.0 g; grain samples collected from children’s homes green