根据文章内容和短语意思可知,Apple-pie order指井然有序,Apple of discord指祸根,One rotten apple spoils the barrel.指一个烂苹果毁掉一筐苹果,一个坏人会导致团队里每个人都表现不好。An apple a day keeps the doctor away. 一日一苹果,胜过找医生。最后一个是和健康有关的,是苹果对健康的作用。故选D。
No one knows for sure where and when it began2. What's the meaning of "apple of discord"?()A. Cause of disagreement.B. Everything in good order.C. Everything under controlD. Situation of danger.3. What's the purpose of the third paragraph?()A. To prove people's love for ...