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er tong song du kun nan de zhu yin que xin
Author(s): 
Pages: 5
Year: Issue:  12
Journal: Regimen

Abstract: <正> 一些幼儿园或小学低年级的儿童,阅读时很费力,诵读时不流利,明显表现记忆力差。这里原因很多,但缺锌是其重要原因之一。据国外医学杂志报道:诵读困难的儿童的汗液锌浓度明显较低,其平均
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