一 非限定性定语从句要用which引导，而限定性定语从句要用that引导
二 在逻辑上，虽然DI是一个存在于过去的人，但是他担任过的职位应该是一个客观的事实（事实不同于事件，事实是没有发生时间的，是一直存在的），不存在于时空之中，应该用一般现在时
三 which 离posts 太远了，隔着1 within the Democratic party 2 during his first term

。另外，not only…but also…表示其连接的两者是递进关系，也就是说其连接的两件事应该是同方向的。在本题中，提供便宜的家具是好事，但是使得森林沙漠化则是坏事。因此，这两件事应该是转折关系而不是递进关系。
but是连词，其需要连接两个句子

E选项的意思是 即便每年申请老师的人数百分比在下降，但是他们的总数仍然比老师岗位所需的人数大很多。就好比，第一年 100录取40 ，第二年90 录取40，虽然百分比在下降，但是实际上supply依旧是充足的。

1) n = 21k+b (b is known as an odd number)
2) n = 28k +3

E对比重复urban tale和其他类型的tale的动机区别与主旨无关

is not a sheer speculation不是纯粹的推测

the REAL issue, though, is "unqualifying" -- this is incorrect. "unqualifying" means "not meeting some sort of standard for qualification".
the intended meaning here is "unqualified", which means "without any sort of restriction or reservation". 无条件的

Ron： i'm loath to use apostrophe + "s" for anything but humans, animals, and the like. ‘s’更偏向一个人

They conclude that the postwar demise of this vital alliance constituted a lost opportunity for the civil rights movement that followed the war.
Demise 终结

好家伙，曼哈顿上写的集合名词大多数是单数，这里就给我脑筋急转弯

C 没有关于E的古代评论
题目说的，L(中世纪手稿中)没关于E的古代评论，进一步放大范围是中世纪手稿中没有关于E的古代评论。

D M在L（中世纪手稿中）有关于古代评论，推不出M在中世纪手稿中没有评论。
E E在L（中世纪手稿中）没有评论，可能推出E在所有中世纪手中稿没有评论。

圆桌题=n!/n

该问题明确提到了需要寻找的关键-金融工具（股票，债券）
由于答案的选择需要以股票或债券不平等为例，B正确显示了大小投资者在购买股票时收取的费用方面的不平等。

语义和逻辑：这个实验的设计为了提供信息，证明遗传疾病的治疗是有用的信息，获得这种信息的方法是给老鼠移植骨髓。

解释的不对，不要看

expect automakers that they will 错误
只能是expect that automakers will或者expect automakers to

理解语义

like在GMAT中通常做介词表示“像…一样”，要求前后严格对称，但不可表示列举。

cloud不是云，是指一团，一群

D选项的with为什么不行呢，觉得低失业率伴随快速增长的经济挺合适的啊？

1) [so that] is used to show intent. (He did X, so that Y can happen.) 'so that' implies that chimpanzees are actually thinking, 'Hmm... if i exhibit curiosity, then i'll be able to catch on to my fellow chimps' behavior patterns. Hey, that sounds like a great idea! I think I'll do that!" ...no.
2) [where] is used to literally denote physical location.
3) [by which] here is a simple example Theorem X was proved by induction by several professors. ('induction' is one method used to prove mathematical theorems) This chapter introduces induction, the method by which theorem X was proved by several professors.
4) ["imitating and practicing" VS "imitation and practice"]
the sentence is written very specifically to emphasize the curiosity per se.
ironically, the sentence is written expressly to MINIMIZE the importance given to the chimpanzees themselves!
if the point was to emphasize the involvement of the chimps, then the sentence would be written with the chimps as the subject. this would be quite easy to do: ...they transmit patterns of behavior by imitating them...
instead the author has taken a sentence whose earlier subject is the chimps and has specifically changed the sentence (into a passive form) so that the chimps ARE NOT the subject anymore.
that's a pretty strong indication that the point is to de-emphasize the chimps, and to emphasize the cognitive p

J收据数据发现，黑猩猩表现出一种好奇心, 通过这种好奇，新的行为和表达模式可以通过模仿和实践从一个猩猩传递到另一个猩猩