2011年考研英語備考：英語閱讀專項特訓(6)[4]

ccess of the immune system in distinguishing foreign substances.

　　[B] the normal and abnormal activities of the immune system in the body.

　　[C] the unfavorable effects of the immune system on organ transplantation.

　　[D] the essential duties of the immune system in guarding the body.

　　核心詞匯

　　intricacy n. 錯綜復雜的事物;紛繁難懂之處

　　dynamic a. 動態的,有動力的,有力的

　　back and forth來回地,反復地

　　hive n. 蜂房,蜂箱

　　organism n. 生物體,有機體

　　molecule n.分子

　　tissue n. (動、植物的)組織;薄的紗織品

　　antigen n. 抗原

　　epitome n. 摘要,縮影,化身

　　microbe n. 微生物,細菌