（ the product of all the different positive prime factors of n）<(the square root of n)看清题意！！不同质因子乘积＜该数平方根，带入选项算，97！

Split#1：inspire to do，去掉选项B、C、E
Split#2：Can't use "have inspired" for something that happened at a distinct point over 150 years ago，去掉选项D

D选项，个人认为它和A选项相比，用了名词capability这种名词形式，没有直接S+V简洁，不优

主句结构是planet passes X
Split#1：选项A中which引导的句子成分完整，去掉
Split#2：选项D中such that 和during which都是连词，不能一起使用，去掉
Split#3：Roughly twice each century，可以看出不强调因果关系，such that 和 so that 强调因果关系。

主句结构是planet passes X
Split#1：选项A中which引导的句子成分完整，去掉
Split#2：选项D中such that 和during which都是连词，不能一起使用，去掉
Split#3：Roughly twice each century，可以看出不强调因果关系，such that 和 so that 强调因果关系。

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