知识贝壳
知识贝壳
所属栏目：英汉双解生物化学
The maintenance of a con-stant internal environment by an organism.It enables cells to function more efficiently.Any deviation from this balance results inreflex activity of the nervous and hormonesystems,which tend to negate the effect.The degree to whic ......（本文共 421 字 ） [阅读本文] >>