A、文章提到过说项目的利润多家公司合作肯定比自家单干利润少，间接说明还是有可能单独一家公司能够处理项目

固定搭配：offer somebody something 和offer sth to sb

感觉问到总收益上升或者下降的题，答案里顾全了price+sales的就对

这题要根据逻辑语意来找核心词：
ABC的核心词都是facilities
DE的核心词是duplication
显然根据句意，浪费资源的只能是duplication of facilities而不是duplicated facilities （这个区别比较小，但是推敲一下肯定是前者的逻辑语义更好一点）
然后就是if only because和while的split：while是有同时或者转折显然有点怪怪的

B:方案可行性削弱

BE很容易由they无所指代而排除
ACD来比较，A的with结构的修饰相对于过去分词intended的修饰而不优选
CD的区别在于after oil reserves are exhausted和after exhausting its oil reserves的区别在于主动被动，而根据题目后者的逻辑主语是fund，fund无法exhaust oil reserves所以选C

Capsaicin, the chemical that gives chili peppers their hot flavor
现在chicken不用吃cap，转而吃另一种，那么能给它们hot flavor的作用是否还存在

他因导致

建立raw和retail之间的关系

B讲的是根本没有去诊断

Ron的做法：由固定搭配 be projected to和be estimated to可以排除其他选项，再者cost to 和 cost of都是正确的，但是当两者在一起出现修饰同一个cost时，习惯用法是cost to xxx of xxx

for doing出现在ving前面的主语不是发出动作的人或者事物 所以就用for表示原题没有出现的行为主语 OG涉及for doing VS TO DO题目很多 可以总结看看 做SC不能认为to do永远优于for doing

E: if you say "the last day that they are scheduled to collect", this means that "day" must be a direct object.
this makes no sense, unless the employees are collecting days.
"the time that we were scheduled to meet" is incorrect. the literal reading of this (which is the only reading you care about, by the way) is that you were scheduled to meet the time itself.

D.这句话后面的同位语award被for....修饰，for long-overdue recognition of their outstanding bravery.提取核心词就是for recognition of bravery。那么这句话的翻译就是 “”为了奖励承认（士兵的）勇敢”。
E.而在E中，the nation's highest military award, in long-overdue recognition of their outstanding bravery.在这里由于这个逗号和in的关系，in long-overdue recognition of their outstanding bravery.这一成分变成状语，修饰主句的award的这个动作，这样就说的通了。

如何在BE中选出最优？——E中：the -ING modifier doesn't just suggest that the verb tense is the same; it actually suggests that the action of the modifier occurs in the same timeframe as the stuff that is modified. so, the modifier in (e) illogically suggests that 1981 and 1997 are actually the same timeframe.

方案无法影响到主因，原文方案：more of the takeoff and landing slots at the busiest airports must be allocated to commercial airlines，即本方案可以影响到事件发生的主因继而解决DELAY的问题，
A选项：我特么DELAY发生的主要原因就是个不可抗力（坏天气）以及overtaxed air traffic control equipment（他因）你特么再瞎倒腾都没用，你的方案根本没有影响到我任何一个主因

其实B选项漏选的很大原因是他只提到了pharmaceutical industry，并没有提到其与OTHER INDUSTRY的区别，但其实是隐含在其中的

把飞机和普通的PRODUCT做类比，诚然when a product is involved in accidents, users become reluctant to buy that product，但如若某一产品发生了ACCIDENT，但是由于其质量好或其自身所带的属性原因减轻了ACCIDENT的不良后果，即可以切断逻辑链

B的错误：at a cost：以...为代价 如果该句子变成at a cost of raising water bill 可能还可以说的过去，但是 at a cost raising water bill则是raising xx做定语修饰cost，首先从句意来说at a cost后面缺少特定成分，句意不完整；再者，cost raise water bill在逻辑上也说不通，所以由以上可以排除B

不太了解first 8 positive integers存在什么意思啊？