chose c. each of which => 定语从句

C: looks tempting but changes the meaning. "economic shifts" are neither able nor unable to be distinguished.

chose b. as evidence for European exploration of => evidence of / evidence that.

In any case, the idiom “so as to” will generally have an intervening term: “So X as to Y.”
We want to say that the changes actually are indistinguishable, not that they *can* be indistinguishable. This is a great example of the kind of meaning-based difference that can catch you if you are only focused on grammar rules.

Greek alphabet was adapted from Phoenician alphabet --> Etruscan alphabet was adapted from Greek alphabet --> Roman alphabet was adapted from Etruscan alphabet.
option A is the only one that uses past perfect to show the order of events correctly!

widespread swelling and stiffness immobilize the injured area in the body's inflammatory response

这道题as much as的用法可以排除所有的。

for A and B: * the "which" erroneously refers to "1999".——Ron

(e)
* "extent TO" is unidiomatic; it should be "extent OF".
* "degree THAT" doesn't work. since things happen TO a degree, you have to preserve this preposition; therefore, you have to say "degree TO WHICH".

C选项：本选项的迷惑度最高。一般来说，平行触发语not...but...连接的两者需要在逻辑上保证平行，本选项严格满足这个要求。但是，如果保证严格的平行，则but身后的副词simply只能修饰形容词random（在but身后根本看不到动词，自然只能认为是修饰形容词的了）。但这在逻辑上是不正确的。本题的意思是，优点不是为了生存的自然选择的产物，而“仅仅”是副产物。因此，simply必须修饰系动词are，不能修饰random（那样，意思就变成了“简单地随机”了）。

argument为：The high success（canvassing） rate shows insufficient canvassing effort。选项C没有体现canvassing rate

Several small statues carved in styles current in Cyprus in the century between A.D. 300 and A.D. 400 were found in Kourion. # mabe between 365 and 400.#

text says:
This effect, however, is due to ignorance, not to the deficit itself

复制粘贴： it is very, very, VERY unlikely that the gmat will ever test this issue, but, if it ever does, then 'what' should be singular.
😂

mitigate:缓和、减轻
B：作者承认M wrote “romances，所以没有countercharge

题干是问是否有一个角是60度，不是在问是否能求出所有的角

难道不是加一个条件：学生只有这两门课的选择 逻辑上更合理吗

不然学生也有可能可以选语文课，数学课。。。 要规定全集比较好吧？

老师，请问C和E相比，语义的差异实在那里呀？

我只看出来一个做定语修饰benefits，一个做状语修饰整个句子。

谢谢老师！

条件2没理解对意思，说的是视频和游戏总数的66%