试题详情单项选择题多肽链中主链骨架的组成是: ( 难度:3)A、.-NCCNNCCNNCCN-B、-CHNOCHNOCHNO-C、-CONHCHCONHC-D、.-CNOHCNOHCNOH-E、-CNHOCNHOCNHO-正确答案:C答案解析:关注下方微信公众号,在线模考后查看热门试题