According to the classification definition standard of soil selenium amount put forward by Li Jiaxi, it is confirmed that there exists selenium-rich soil in Zhejiang.

依据李家熙的土壤硒含量的分类定义标准，可以确认浙江存在富硒土壤。

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The definition was changed in 1997 by the American Diabetes Association and WHO Expert Committee on the Diagnosis and Classification of Diabetes Mellitus.

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