免疫耐受(immunogical tolerance)
参考答案:
指机体免疫系统接触某种抗原后所表现出的特异性免疫无应答或低应答。
升温时,双氧水浓度应是多少?
Would you let()to the park with my classmate, Mum?
A.me go
B.me going
C.I go
D.I going