阿摩線上測驗
3. The figure below shows the relationship between the titration curve and the acidbase properties of glycine. The key points in the titration are designated I to IV. Which key point of the figure where the average net charge of glycine is 0? 
(A) I
(B) II
(C) III
(D) IV
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統計： A(1), B(0), C(3), D(0), E(0) #3077620
統計： A(1), B(0), C(3), D(0), E(0) #3077620
