A： had been后是省略了形容词，但前面并没有形容词，应该是had done

A： 是 419 times the pay和 ratio比较，不对，pay不能跟ratio比较

选项A的主干核心是一个主系表结构，making things difficult= general market inactivity. 错误

flip it! 因为后面提到新方法需要考虑更多的变量， 即旧方法需要考虑更少的变量

这个address离定位差的有点远啊...只能尽量排除法了

用转折词可以判断出来：Since Royalist ideology is often associated with the radical patriarchalism , (前后产生矛盾才导致puzzle)historians have been understandably PUZZLED by the fact that blablablabla ///Some historians have QUESTIONED THE FACILE EQUATION of Royalist ideology with Filmerian patriarchalism. 大写两处都可推测出答案

https://www.beatthegmat.com/leaf-cutters-and-most-other-ants-in-having-nests-t284776.html

C - 过去完成时错；D - 现在完成时错； E- it指代错误

The answer has already been stated in the passage: older production technologies often continue to generate toxic wastes that were not regulated when the technology was first adopted. New regulations have imposed extensive compliance costs on companies still using older industrial coal-fired burners that generate high sulfur dioxide and nitrogen oxide outputs,

revelent keywords : interdependence, or“coevolution,” of plants and insects over time; concerned with the role of plant chemicals in interactions with other organisms

最好的CR和RC做法就是：场景化阅读和场景化聊天辩论。最好的SC做法就是：分析句子结构，提取主干。

问一下如果explaining是对的，那他的逻辑主语是从句里的主语the use of fire，还是主句的主语anthropologist呢？而且表示结果的话，同样的，表示的是前面整个的结果呢，还是从句部分的结果呢？

E
* improper parallelism (as much because X as that Y)
* "as bad as" sets up a comparison, which doesn't have a second half in this case (you can't just say "as bad" by itself; you have to mention ... as bad as what else. by contrast, "so bad" can be used by itself, as it is in the correct answer here; "so ADJ" is not a comparison.)

potential economies of scale are based on the physical and engineering characteristics of the production facilities—that is, on tangible capital—but realized economies of scale are operational and organizational, and depend on knowledge, skills, experience, and teamwork—that is, on organized human capabilities, or intangible capital. ---看文章整体而不是细节； 同时，文章也并没有重点解释为什么大型设备不能带来scale of economics

altitude -longitude 可以等价于 clear line of demarcation ??
那还和 boundary line 有啥区别了啊

这道题assumption题取反削弱的方式去理解题目其实并不好理解！！！仔细读文章和选项理解会更好理解，为什么！科学家做这个实验目的是啥不就是为了证明动物是不是有自我认知的能力么！拿个镜子过来让动物照自己，一般动物都以为是敌人，但是黑猩猩牛逼哩！知道是镜子里是自己！！所以科学家基于那种假设下得知黑猩猩这么牛逼啊！有自我认知！！B选项：不要去取反，你理解下意思：就是说动物没有镜子的自我识别能力，那这个动物也不肯能有自我认知意识！！你明白么！！你都看不出镜子里的是自己，你还能有更高级的自我意识认知想法！这不是搞笑么！！！但是黑猩猩做到了！！它认出来是自己了！！看明白了么！！是不是更好理解基于这样的假设！

speculation 这里当做 投机 讲吧？所以和possibly没有 重复。但是感觉想用也应该是，another possible increase吧。

同义转换
continuously test the market---------------- and use the results to secure concessions from existing suppliers
Obtain bids from other providers of health care benefits--------in order to be in a position to negotiate a better deal with the current provider.

实际上可以排除法做出来。可能选错的D：when not directly related to production, corporations often favor “supplier partnerships. 并不能推出when directly related to production, corporations do not favor SP(很典型的伪是非情景）
B选项可以看比较的是in a competitive-bidding situation--即purchases have right
supplier partnerships”--(arrangements in which the purchaser forgoes the right to pursue alternative suppliers)-- purchasers do not have right

错误原因：不相信答案....实际上D和E都有很明显的错误：D中的revitalize 和create是有区别的； 而且hope to有目的的意思，文中并没有说他的目标是E的顺序颠倒。