题目

He is different his brother,but he is similar his father.A. from, from B. to, to C. from, to D. to, from 答案：【答案】C【解析】试题分析：句意：他不同于他弟弟，但是他和他爸爸相似。此题考查固定短语be different from不同于；besimilar to与……相似；根据句意，故选C。双缩脲试剂可检测 ，维生素C可以用 来检测。