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9. Among 20 amino acids, how many of them contains -OH group in the side chain? (A) one； (B) two； (C
問題詳情
9. Among 20 amino acids, how many of them contains -OH group in the side chain?
(A) one；
(B) two；
(C) three；
(D) four.
參考答案
答案：99
統計：A:0,B:0,C:0,D:0,E:0
難度：計算中
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