题目内容
下面是三种氨基酸的结构式,由这三种氨基酸按顺序脱水缩合所形成的化合物中,含有的氨基、羧基和肽键的数目依次是

2021-09-04
A.1,1,2
B.1,1,3
C.1,2,2
D.2,2,2
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