He is rather difficult to make friends with, but his friendship, ____, is more true than any other. A. once gained B. when to gain C. after is gained D. while gaining 答案:Aonce gained是状语从句的省略, 相当于once it is gained。将下面的3句话整合为一个单句(含标点符号不超过35个字)。(3分)
真的东西总是同假的东西相比较而存在的。
善的东西总是同恶的东西相比较而存在的。
美的东西总是同丑的东西相比较而存在的。