A1型题

多肽链中主链骨架的组成是

A:-NCCNNCCNNCCN- B:-CONHCONHCONH C:-CHNOCHNOCHNO- D:-CNOHCNOHCNOH- E:-CNHOCNHOCNHO-

多肽链主链骨架的组成是（）

A:-NCCNNCCNNCCN- B:-CANOCHNOCHNO- C:-CONHCONHCONH- D:-CNOHCNOHCNOH- E:-CHNOCNHOCNHO-

多肽链中主链骨架的组成是

A:—NCCNNCCNNCCN— B:—CONHCONHCONH— C:—CHNOCHNOCHNO— D:—CNOHCNOHCNOH— E:—CNHOCNHOCNHO—

多肽链中主链骨架的组成是

A:—NCCNNCCNNCCN— B:—CONHCONHCONH— C:—CHNOCHNOCHNO— D:—CNOHCNOHCNOH— E:—CNHOCNHOCNHO—

多肽链中主链骨架的组成是（）

A:-NCCNNCCNNCCN- B:-CONHCONHCONH C:-CHNOCHNOCHNO- D:-CNOHCNOHCNOH- E:-CNHOCNHOCNHO-

多肽链中主链骨架的组成是

A:—NCCNNCCNNCCN— B:—CONHCONHCONH— C:—CHNOCHNOCHNO— D:—CNOHCNOHCNOH— E:—CNHOCNHOCNHO—

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