DE的不同的是D的核心词是likehood E是a particular asteroid or comet likehood 和may重复

不定式和ing 的去呗 原来划线部分没有转折的一般不需要转折

啊啊啊啊 involving不能做动词谓语

考场上碰到这题是喜还是祸！！哈哈

C 答案是取反后得到的，很符合出题套路啊

C 是 sharp increase 不对嘛？

为啥不选E:我觉得列举gum 的功能---bacterial infections 是为了说明前面的那句Confusion also persists surrounding the term “resin,” 。
是为了前面的观点服务的呀

逆否太容易绕晕了，就是单纯的实际情况因果与研究给出相反 所以weaken

D选项 原文没有给出“两者加和”变得更强的意味

三者平行现在越来越考语义了

感觉这题有歧义， 难道不能理解成 仅有4个数 4个不同的质数吗？

关于less和lighter我混淆了很久，这里摘录Ron的例句：
ron, who weighs 215 pounds, is heavier than his brother. --> CORRECT
ron weighs 215 pounds, which is heavier than his brother. --> INCORRECT (pounds don't "weigh" anything; ron does)
ron's weight of 215 pounds is greater than his brother's weight. --> CORRECT

因果推理，问的是加强。因 M sold 5% more p last year than in the previous year 果 M说的 the change has hurt p sales不对 。A 加强 DE削弱 BC无关。

为啥还是不会用helr 的推理方法

题目问 limitation on the applicability of the proposed method ，首先A错 谈了其他方案， C、E错 和CQ无关，D only 限制了sunflowers的种类 ，但是不影响，只要有某种sunflower能达到目的就ok

查了下词典
somebody/something has yet to do something
[formal] used to say that someone has not done something, or that something has not happened when you think it should already have been done or have happened

have yet 表 尚未？

prep笔记里答案是A？

老师，D选项的解释看了好久没有看懂，能否更详细讲解一下呢？因为OG上的解释是被动语态的使用破坏了并列

因果. CQ1: 干扰因素问题