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2.Which amino acid displays a free amino group in the tetrapeptide ALA-HIS-ARG-THR?(A)ALA(B) HIS(C)
問題詳情
2.Which amino acid displays a free amino group in the tetrapeptide ALA-HIS-ARG-THR?
(A)ALA
(B) HIS
(C) ARG
(D) THR
參考答案
答案:A
難度:
計算中
-1
書單:
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6.試問有多少個正整數n,使得 為整數?(A) 1個 (B) 2個 (C) 3個 (D) 4個
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