Therapeutic clone has acquired tolerance or support gradually by common people, While reproductive clone is still opposed by most people.
治疗性克隆日益得到世人的宽容或支持，而生殖性克隆仍遭到大多数人的反对。
The MHC restriction of t cell is determined in positive selection. The tolerance of t cells to autoantigen is acquired during negative selection.
阳性选择决定了成熟T细胞的MHC限制性，阴性选择使机体获得自身免疫耐受。
The acquired drug tolerance rate to the four kinds of drug increased in different quantities compared to the initial drug tolerance rate.
与初治耐药率比较，复治耐药率对4种药物有不同程度升高。
The acquired drug tolerance rate to the four kinds of drug increased in different quantities compared to the initial drug tolerance rate.
与初治耐药率比较，复治耐药率对4种药物有不同程度升高。
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