阿摩線上測驗
12. The production of second messengers in signal transduction offers at least two advantages, speed and ____.
(A) specificity
(B) amplification
(C) affinity
(D) reversibility
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統計： A(3), B(22), C(1), D(0), E(0) #3321035
統計： A(3), B(22), C(1), D(0), E(0) #3321035
