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 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。
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