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?


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

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

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

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

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 county.

加入错题本 分享
纠错
考题讲解

情景：风力涡轮机需要空旷的土地。X国家和Y国家的地形差不多，但是X国家的人口密度显然大于Y国家。因此，这个风力涡轮机应该放在Y国家。

推理：

前提：Y国的人口密度小
结论：这个风力涡轮机应该放在Y国（Y国空旷的地方多）

答案预估：

人口密度小不等于空旷地方多，要看是否分布均匀。

选项分析：

A选项：X和Y彼此毗邻，两者都是所属州风最大的地区。本选项和空旷地方多少没有联系。

B选项：Y的人口数量要远远大于X的。人口多少和面积空旷与否没有关系。

C选项：有些Y由风力发出的电能被在Y之外的人买走。本选项提及是电能最后的归属问题，和地区空旷与否没有关系。

D选项：产生单位电能的情况下，风力发电比其他种类发电需求更多的土地资源。本选项提及的是风力发电和其它发电相比需要土地的情况，和推理文段的结论没有联系。

E选项：几乎所有的X的人都聚集在X很小的一个部分生活，而在Y，大家都是四散居住的。本选项反驳了结论。虽然X的人口密度大，但是若X的人大都住在一起，那么空旷的地方可能反而要多于Y。

展开显示

登录 或 注册 后可以参加讨论

Prep2008E1-CR
考点