题目

This morning Diana invited ________ to ________ birthday party. A. me; her          B. I; hers                   C. me; hers           答案：A分析多肽E和多肽F（均由1条肽链组成）得到以下结果。（单位：个）原子或基团CHON—NH2—COOH多肽E201348625332多肽F182294555461请推算这2种多肽中氨基酸的数目最可能是选项ABCD多肽E1993405851多肽F1812815349