（前50个偶数）的和是2550. 求从102至200中偶数的和。
102至200视为等差数列，An=200, A1=102, d=2, 求出n=50.
102至200每个数都比（前50个偶数）中的每个数多100，所以50*100
答案：2550+50*100=7550

B as frequently ..that 不符合搭配；but nonetheless表达冗余；？如果后半个子句要和individuals并列，必须加that；
C 缺谓语动词，run-on
D 缺动词，as as搭配错误
E as as搭配错误；and 后面缺少that

A had been与shattered不对应
BC 主语错误
E of D M's 错误，either..or..错误

“effect on the bottom line” bottom line, 盈亏底线本身是一个不是很正面的词的词，也就是找题目中，表示price promotion effect不是很正面的证据，也就是证明为什么price promotion的effect不是那么positive

想问一下，were to 的正确用法是什么？

后面四个选项是典型的 无中生有的对比
A in Tawahka society, kinship ties are a more important indicator of this than are legal property rights, so researchers measured it by a household's duration of residence in its village.

错选D 认为持有51%的股权却不能控制 British Imperial Bank in Iran was never entirely a tool of the British government, ——illustrate a point about the financial difficulties
但仔细读题 illustrate difficulties，列出持有51%这个事情并不能illustrate啊
E 排除法，能挨上边 British government在British business中就是share holder的角色

ever since-- 完成时的标志
能和人类比的对象是马类而不是those of horses

THEM指代谁啊？FOREST不是单数名词吗。。。。。。

nope. no way.

COMMA + -ING is always an adverbial modifier; it always modifiers the preceding CLAUSE.

that's sufficient to eliminate this choice.这是Ron 对C 的说法，而且我仔细看了一下之前的题好像真的没找的，comma+ing修饰前面的名词的正确选项

D的with which it exposed and criticized是什么成分啊？

错因：太着急了，没能把A、B选项稍微好好想一下。考试时一定不要一直看时间，每做完10题再看时间！

对√How likely is it NOW that a comet/asteroid WILL STRIKE Earth?
错❌How likely Will it be that？(Likelihood概率只有现在没有将来)
对√Likelihood that/of
错❌likelihood to do

D use // take 两个谓语动词表示的是动作发生，即两个动作事件

E is 为svc句型，in small quantities补充说明的是usage的状态。状态与事件不能平行。

..the usage of spices is in small quantities（这里的重心词是be动词这个状态）和take这个事件。..

it should be clear that her work + her discovery + her documentation is more parallel than her work + by her discovery + by her painstakingly documenting.

her work, her discovery, her painstaking documentation三者平行。

三个noun平行最好。

C选项，即使允许in addition to 与 author并列，但后面因为没有出现裸noun 的documentation，所以不对。

B succeeded in mining and producing for electricity, 目的是electricity，语义不对。应该是for 发电

A generation 与heating不平行
E efficient generation与heat不平行

A it can be spent 的 it 指代budget，而budget不能be spent，错误
B demand 由v改为n依然自带命令的语气，后面应该接(should) do，should必须省略。

觉得B可以这样理解，B选项取非，富人捐赠不是唯一来源，但新政的实施对慈善机构而言依然会减少收入，不能削弱，故B错误

B的确证实了因果关系方向，智力影响社交，但为什么也可以证明反之就不行呢？