随着社会的不断发展,人民生活水平不断提高,“纯净水”走进了千家万户,同时也迈进了学校的门槛。同学们正处在生长和智力发育阶段,身体需要各种营养素。如蛋白质、脂肪、糖、维生素和矿物质。其中矿物质包括钙(gai)、磷(lin)、碘(dian)等微量元素。同学们活动量大,要消耗大量的无机 With the continuous development of society, people's living standards continue to improve, “pure water” into the tens of thousands of households, but also into the threshold of the school. Students are in the stage of growth and intellectual development, the body needs a variety of nutrients. Such as protein, fat, sugar, vitamins and minerals. Among them, minerals such as calcium (gai), lin (lin), iodine (dian) and other trace elements. Students large amount of activity, to consume a large amount of inorganic