题目

What is _________ way of going to school in your country? A. the most popular              B. most popular             C. more popular     D. popular 答案：A10．如图是某短肽的结构示意图，下列说法错误的是（　　）A．该化合物含2个游离的羧基B．该化合物是由3种氨基酸脱水缩合而来C．该化合物含有2个肽键D．该化合物被称为三肽