定位：A manufacturer's fixed costs and "sunk costs" (original capital investment in the physical plant) do not decrease when production declines due to inadequate supplies of raw materials, problems on the factory floor, or inefficient sales networks. 我很后面的内容正式 throughput的内容

请问'minimum efficient scale'和‘exploit full potential’有什么关系

capital-intensive industry定位到第二段

定位Such industries are quickly dominated, not by the first firms to acquire technologically sophisticated plants of theoretically optimal size, but rather by the first to exploit the full potential of such plants.

（以此为准）类比推理：因为那些新店竞争不过C，求削弱---等同于那些新店竞争的过C，求加强；
类比推理找题干里提过的相同点或者不同点；找选项是题干里提过的相同点才是加强---ADE其实都是不同点（削弱）；C无关，只有B，B的句子要读懂：
the stores （that have opened in the central shopping district since Colson's opened ）have been discount stores.

类比推理：因为那些新店竞争不过C，求削弱---等同于那些新店竞争的过C，求加强；
类比推理找题干里提过的相同点或者不同点；找选项是题干里提过的相同点---ADE其实都是不同点；C无关，只有B，B的句子要读懂：
the stores （that have opened in the central shopping district since Colson's opened ）have been discount stores.

方案推理：方案的否定性副作用——削弱

果因推理: 说明结果原因，或者因果联系问题

错选了B, 此处weighing应该涉及指代不明？

请问老师，关于C选项，什么时候用for doing，什么时候用to do呢？两者不是都可以表目的吗？

E-即使有生物活动消耗盐也没关系，只要这几百年river载着均速的稳定数量的盐到海里，这个时间就算的出来；关注选项需要保证冲到海里的盐是均速稳定，哪个选项能保证这个均速相对稳定的含盐量呢？
A-说river里溶解的盐的量在几百年都不是很多，正确

enough的固定搭配：enough for sb. 对某人来说足够了;enough to do something 足够做某事;错误搭配：(X) enough + that / so as to / so to / so that。enough to, so/such…that…, so/such…as to三者都表示结果,区别在于:enough to表示主观满足,在标准书面语中很少使用; so/such...that不用考虑逻辑主语问题; so/such...as to逻辑主语等于句子主语,即句子主语可以执行as to后面动词所表达的作用

伴随状语的主语不都是主句主语吗？这里为什么又是就近修饰？

Choice C: 1. Repeats the same parallelism error as in Choice B.
2. “what are “ is not needed.
3. This choice distorts the intended meaning. It says that the effects that would have the largest impact are the most obvious ones.
Choice D: There is no verb for “extremes of temperature, precipitation, and storminess”. This leads to a fragment.
Choice E:
1. Use of “which” is incorrect.
2. “to impact the most on people” is ungrammatical.

Choice B: 1. “the effects that are the most obvious ones” is way too wordy when we can say “the most obvious effects”.
2. The parallel list has been violated. The entities in the list are now “effects”, “extreme of temperature”, “precipitation”, and “storminess”.
3. Reference of “those” is ambiguous.
4. “impacting the most on people” is absolutely ungrammatical. The correct expression is either “have impact on people” or “impacting people”.

Choice A: the most obvious effects, and those that would have the largest impact on people, would be extremes of temperature, precipitation, and storminess: Correct for the reasons stated above.

they 难道不会指代不明吗。。

是不是引导宾从的that一定不能省略？

很恶心啊这题.... 这种逻辑很牵强，用健康的人推到胖子。呵呵了