很多人都知道免疫力是指人体抵抗疾病的能力,这种能力是由人体免疫系统产生的。而免疫系统就好比电脑网络,甚至比电脑网络还要复杂,有如人体的警察那样实施着多层次的生物防卫职责。这个网络由免疫器官,免疫细胞,免疫活性分子所组成。免疫器官分为两部分,一是中枢免疫器官,包括 Many people know that immunity is the ability of the body to resist disease, which is produced by the body’s immune system. The immune system is like a computer network, even more complex than a computer network, as the body’s police perform multiple levels of biological defense responsibilities. The network consists of immune organs, immune cells, immune molecules. Immune organs are divided into two parts, one is the central immune organs, including