阿摩線上測驗
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.
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統計： A(0), B(1), C(0), D(0), E(0) #3207879
統計： A(0), B(1), C(0), D(0), E(0) #3207879
