论文部分内容阅读
钙不仅是骨骼和牙齿的基本成分,而且是人体的多种细胞及体液中的重要物质.缺钙,会导致年幼者发育障碍,年长者百病丛生.
Calcium is not only the basic components of the bones and teeth, but also an important substance in a variety of cells and body fluids of the human body. Calcium deficiency, will lead to developmental disorders in young children, all elderly elderly.