多肽链中主链骨架的组成是A.-CNOHCNOHCNOH- B.-NCCNCCN

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问题 多肽链中主链骨架的组成是A.-CNOHCNOHCNOH-B.-NCCNCCNCCNCC-C.-CONHCONHCONH-D.-CHNOCHNOCHNO-E.-CNHOCNHOCNHO-

选项 A.-CNOHCNOHCNOH-
B.-NCCNCCNCCNCC-
C.-CONHCONHCONH-
D.-CHNOCHNOCHNO-
E.-CNHOCNHOCNHO-

答案 B

解析
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