問題詳情
18. Which one of the following properties is the outcome of both pre-BCR and pre-TCR signaling?
(A) Allelic exclusion
(B) Class switch recombination (CSR)
(C) Positive selection
(D) Shut off pTo transcription
(E) Stimulation of k chain recombination.
參考答案
答案：99
統計：A:0,B:1,C:0,D:0,E:0
難度：計算中