E为什么不对？

Split#1：平行错误，去掉选项A
Split#2：“不定式和从句的区别”，排除选项C、D
Split#3：in order to通常只能用于表示状语的不定式，不能用于表示宾补的不定式。去掉选项E

Split#1：single drop 去掉选项D、E
Split#2：detection by 错误，去掉选项A。be detectable by 错误，去掉选项B。

whereby是副词 从而

平行为大，我觉得and前后的独立分句主语还是保持一致为好，至于后面she可省可不省，没省总不能说它赘余吧。倒是A.B选项的her有赘余的嫌疑，参考OG20“全球经理”那题错误选项：
For global managers working with overseas clients, an understanding of cultural norms is at least as important to them as grasping the pivotal business issues. 这里for global managers和to them
一直在找C项的合理解释，无果，看了大多数句子只能说，不定式作主语的情况下，GMAT中用it作形式主语优于直接做主语，就这样吧😔

Excepting for is non-idiomatic.
as a British colony, Mauritius might be expected to be English-speaking, but in fact it was not. To describe this apparent contradiction and to avoid a comma splice, the clauses should be joined by the conjunction but.

Conceived of . . . should be followed by as rather than to be.
other than what it is is awkward, wordy, and redundant, overlapping the meaning of precisely the opposite . . . .
regard/conceive (of)/look on/as+名词/形容词，不接to be，不接being

By regulators illogically indicates that regulators are the ones who did not need approval;

这道题选错只是因为太polite了

while studies typically restrict their analysis to the national level.

Note that while the phrase less total fat than livestock differs from the phrase less total fat than do livestock in the original, either would be correct here.

both的出现没意义，since only one point is being made about where Monk’s musical roots are located.

integers！！！！！！

appear不应该用过去时。其在本质上应和未划线部分的动词indicates平行，表明两个事实，而不仅仅是过去发生的事情。

screen 又学到了

别人要看的=租的+买的，在没有V outlet之前，只有租，没有买，现在有人买了，租的人会随着买的人增加而减少，E选项说买的人会借给没有的人，那么租的人就更少了。
错选A，A应该是无关，说的是V outlet租的比卖的多，但是题目关注的是总的outlets的全部rentals

B选项哪里不太对呢，是being错误么？

"A 错选 AB的意思是错的
AB的意思是知道的时间，而文章实际要表达的是制造石器的时间
修饰语必须离修饰对象很近，所以 date是修饰known的。
C 没选觉得应该用when，但实际上at which等价于when
D 前面是时间date，不可以用that，that只可以代替物
E 人类的日期 错误"

"错选B 没发现whether or not是重复的
determine that 错误 改变了原意 原文中determine后面的事情还不确定 排除ADE
C没选 主要是觉得少了助动词is 但是在这句话中少了is不会引起歧义。另外是觉得主语research不能发出to do的动作，但是在被动语态中这一点是例外。"

BD works单数错误，和后面的many are矛盾
A which只能修饰物 不能修饰人
E runon
Many后面必须要跟名词，不能单独出现