知识贝壳
知识贝壳
所属栏目：英汉双解生物学
The increase in the reactionof an organism or cell to an antigen to whichit has been previously exposed.It may occurnaturally or be artificially induced,e.g. fol-lowing vaccination.生物或细胞对先前接触过的抗原表现出的反应敏感性的提高。它可自然发生或人工诱导,例如接 ......（本文共 202 字 ） [阅读本文] >>