题目

— The English exam is not difficult, is it? —____________. Even Tom _____ to the top students failed in it. A . Yes; who is belonging B . No; who is belonged C . Yes; who belongs D . No; who is belonging 答案：C早晨空腹喝牛奶的同时吃些面包的营养价值高，其原因是空腹喝牛奶时被人体吸收的氨基酸主要进行（  ） A．脱氨基作用 B．氨基转换作用 C．合成组织蛋白 D．转化为脂肪