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.

老师好…这道CR题错选A能求解释一下么？谢谢！

请教唐瑭老师：og上的题，答案是D，选了A。不明白D为什么对，是因为最后一句的Although强调的是前半句吗？although一般强调后半句还是前半句？

老师这道题不知道该怎么解！我是这么算的 6!/3!*3!得出来的结果再乘以2，等于40，但答案是30，不知道是哪里算错了，还是我理解错了，希望老师解答！

老师图片里是作文的标题和我在规定时间内写的东西，您看看我错误找全了吗？找错的思维有没有跳跃？第一段和第二段的论证可以这样写吗？以及我每次都是三十分钟压线写完，字数也不多，请老师给我提一些思维和写作上的建议，谢谢！

老师这道题题目有点看不懂，算不到B选项，不知道是题目理解错了还是公式用错了，求讲解

老师能讲解一下这道题吗？

老师您好，这道题的题目有一点看不懂，请问是什么意思以及为什么选d？

老师您好，我想问一下这道题E为什么有利于支持文中观点？

@英吉老师，我最近在看您的录播逻辑网课，您不推荐我们回读。但是我在日常练习的时候做不到读一遍就能弄懂句间关系，或者读第一遍有时候连句子一起都不太清楚。那我们想要练就读一遍就可以了解句间关系的能力，并且用在考场的话，平时可以怎样练习呢？

老师请问这个“or”应该怎么算？