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微量元素锌在人体内具有着重要的生理作用，参与40多种金属酶的合成，与200多种酶的生物活性有关。近年来研究表明，缺锌可引起智力低下，也可引起免疫功能低下问1。我们自1997年1月～1999年1月，对450例小儿进行了发锌的检测，现将检测结果报告如下。1对象与方法1．l检测对象?
Trace elements zinc in the human body has an important physiological role in the synthesis of more than 40 kinds of metal enzymes, and more than 200 kinds of biological activity of the enzyme. In recent years, studies have shown that zinc deficiency can cause mental retardation can also cause immune dysfunction ask 1. We from January 1997 to January 1999, 450 cases of children were made of zinc detection, the test results are reported as follows. 1 objects and methods 1. l test object?