研究人�培育了一种称为“裸鼠 的实验动物这种鼠缺�胸腺其免疫功能表现为 A体内淋巴细胞的种类减�b体液免疫功能维持正常c进入 Template




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tomski研究人�培育了一种称为“裸鼠 的实验动物这种鼠缺�胸腺其免疫功能表现为 a体内淋巴细胞的种类减�b体液免疫功能维持正常c进入 coloring