陆旭老师，我有一些做过的assumption题目取非的句子搞不清，你能帮忙看下吗(不说这道题目的解题思路，单纯就是取非问题，特别是双重否定或者从句里面有否定词） 1.No part of a person’s brain that is damaged by a stroke ever recovers.---> some part of a person's brain that is damaged by a stroke ever recovers. 2.Impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain.这个句子我不太会取非，正过来说这个句子就是Impairment of linguistic capabilities occurs in people who have suffered any damage to any language center of the brain.那么我取非是Impairment of linguistic capabilities occurs in people who have not suffered any damage to any language center of the brain. 3.If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages at least one of them. 取非If there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages nothing of them. 4.这题出现两个not The collection fee will not significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out. 我取非直接去前面的not: The collection fee will significantly affect the purchasing power of most residents, even if their households do not reduce the amount of trash they put out. 5.这个也差不多 Not all steel producers were unaffected by country A’s newly imposed tariffs. 我取非All steel producers were unaffected bycountry A’s newly imposed tariffs. 6.There are no plants native to western Africa that, if domesticated, could serve as staple food crops. 这个if domesticated是不是可以不管，直接改成There are some plants native to western Africa that, if domesticated, could serve as staple food crops.

想问一下老师这题的定位思路是如何的，大后天就考了。答案是C，还想听一下D的话为什么不能选

想问下老师这题的思路。为什么B选项不对，对于比例是没办法说明坏的多还是少，需要一个说人数一样多来补充证明说motorized确实比non m多。为什么要D

想问下老师这题的思路是怎么的，assumption的题目应该怎么做，之前是老师的方法是说把assumption看成是一个argument的补充原因，好像在这里用不上？有点急

想问下老师这题的思路是怎么样的，快考试了有点急

想让老师理一下这篇阅读的文章结构还有解决下第4题

想问问唐塘老师这题思路是什么样的，我做的时候只get到了预算是由税的2%来的，然后一个公司现在由1%的这个城的雇佣员工组成（不知道对不对），还有想问下这题在考试里大概是什么水平的题目

想问下唐塘老师，这题我没看懂题目的意思，查了意思后说是调和xxxx，也不是很明白，然后我看说c讲了两个不同状态的婴儿，对于牛奶的吸收的不同，跟原文里呈现了两种婴儿的比较比较一样，就选了，这思路对么？答案是c

想请问下唐塘老师这题的思路是什么，感觉一点思路都没有

请王文静老师答疑

想问一下may老师，如果这一题把题干改成 a sequence of 6n conseuctive integers, 那是像这样分析吗。