题干

器官移植的困难是机体对移植器官的排斥,这是因为植入器官的组织细胞相当于()


A:病原体

B:抗原

C:抗体

D:受损伤的组织

上一题 下一题 0.0难度 选择题 更新时间:2017-01-17 01:57:12

答案(点此获取答案解析)

B

同类题4

— Did he realize the serious situation immediately?
— No. It was quite a long time ________ he really realized it.