gwd-5-28 B和E能推出同样的结论

Q28:

Wind farms, which generate electricity using arrays of thousands of wind-powered turbines, require vast expanses of open land.  County X and County Y have similar terrain, but the population density of County X is significantly higher than that of County Y.  Therefore, a wind farm proposed for one of the two counties should be built in County Y rather than in County X.

Which of the following, if true, most seriously weakens the planner’s argument?

1. County X and County Y are adjacent to each other, and both are located in the windiest area of the state.


2. The total population of County Y is substantially greater than that of County X.


3. Some of the electricity generated by wind farms in County Y would be purchased by users outside the county.


4. Wind farms require more land per unit of electricity generated than does any other type of electrical-generation facility.


5. Nearly all of County X’s population is concentrated in a small part of the county, while County Y’s population is spread evenly throughout the country.

density=population/terrain

County X and County Y have similar terrain, but the population density of County X is significantly higher than that of County Y.

The total population of County Y is substantially greater than that of County X

上述两句我觉得B和E能推出同样的结论，请教。

谢谢cranberry

根据上面的那个简单公式，X、Y两地领土相同，Y的人口数量大于X的人口数量。正常情况下，Y的人口密度应该同样大于X。但是Y的人口密度反而小于X的人口密度，这说明X的人口分布存在异常，也可以推出类似E的内容。

当然，E是更完美的选项，我做的时候也选的是E，但是我现在的问题是拿不出足够的理由排除B，请指出我的逻辑错误，谢谢。

啊，明白了，刚才被绕住了，谢谢斑竹。

terrain，这里是什么意思，应该是指地形吧！有没有面积的意识？

from wb

1 a (1) : a geographic area  (2) : a piece of land  : GROUND  b : the physical features of a tract of land
2 : TERRANE 1
3 a : a field of knowledge or interest  : TERRITORY  b : ENVIRONMENT, MILIEU

我看到b就选了，因为当时认为similar terrain就是面积什么都一样，

现在看来应该是指地形，否则b说Y人多，那么地形又一样不是density就高了吗？

现在看来e是对的，原文说要大片土地，x density大---〉在y建wind farms

e说x的人口density虽然大，但都集中small part of the country,这个weaken即是他因（concentration)削弱，又是断桥( density 于open land的多少无关）削弱。

首先，原文根本没有提及面积；有的仅仅是地形相似，X人口密度大于Y。

A：排出他因削弱，加强

B：Y人口巨大，人口密度又很小，说明大广人稀，正好风力发电，支持

C：would be purchased by users outside the county,无关，讨论的不是发电以后卖给谁

D：than does any other type of electrical-generation facility，错误比较

E：X人口集中，可以给发电提供空间，削弱