多肽链中一级结构的基本单位是: ()
A、—NCCNNCCNNCCN—
B、—CHNOCHNOCHNO—
C、—CONHCON-HCONH—
D、—CNOHCNOHCNOH—
E、—CNHOCNHOCNHO—
发布时间:2023-07-25 12:20:30
A、—NCCNNCCNNCCN—
B、—CHNOCHNOCHNO—
C、—CONHCON-HCONH—
D、—CNOHCNOHCNOH—
E、—CNHOCNHOCNHO—