A. 这里写investigate changes。看到B应该就会有感觉，改变不需要调查，只需要观察就可以了。只有effect 才需要调查。
B. 正确。investigating 做后置定语修饰 experiment
C. 介词短语做名词的定语，和ing做定语不一样。介词短语的话没有主词，没有动做的发出者。for investigate，发出这个动作的对象就不是 实验了，错误。
D. experiment 只能在从句中做主语，做investigate的动作发出者，不行，错误 又是调差改变，错误同A
E. what 指代something that。

changes in working conditions would have on workers' performance 在effect后面做定语，因为effect 在从句中做宾语，所以that可以省略。

连词in that是“因为”的意思，和for，because的意思相仿

这道题看不太懂，但是看见逻辑链还是选对了。。

一眼就看见 in 1409 but not in 1460，直觉告诉我只有这个相关。考场上来不及可以秒选

感觉整个逻辑链非常清晰了

ridership

请问 growing an extra one or two, 不可以理解成overcompensating 的结果吗？
我觉得E选项也可以呀

There is a problem with (A). There could be periods of day during which interval between flights is more - say the 12 noon to 4 pm slot. But still, it is possible that the number of flights are reduced, say in the peak hours of 7 pm to 10 pm. We don't know whether it is feasible to readjust flight timings to occupy free slots. Hence, we cannot assume that there are no free slots.

logic chain - Emotions are not irrational urges. They are a product of combination of estimation of events and observations -> Wise person can never achieve the goals
还是不太理解为什么第一答案是assumption, inevitably evaluate from the observation

太长了吧文章

借用之前的解答：
1. 根据each能排除ABC
2. DE中，借用楼下的解析：extent和degree新技能get
THE DEGREE THAT 表示程度的内容是什么，不合逻辑
THE DEGREE TO WHICH表示什么什么的程度。
TO THE EXTENT 达到。。。的程度
OF THE EXTENT 什么的程度

想问一下，如果先不考虑正确答案e选项的情况下，只看c 选项，c 不能看成是提供了一个反例（Sales of specialty types of coffee have held steady ）吗?

不是很理解种植区在城市，然后取消这个政策的话会影响城市的失业率，意思是不限制出口的话，城市里的人反而不去种植腰果了吗？不懂

老师：请问AC选项怎么比？我错选了C

这也太难了，还是没看懂。选项A怎么加强啊，题干说的是吸烟会导致抑郁

Because this survey was among the shoppers of FoodBasket. According Answer A, the shoppers of FoodBasket choose FoodBasket for the low prices offered on the items that they purchase most often. That means this survey result is biased.