Q28(D)
Wind farms, which generate electricity using arrays of thousands of wind-powered turbines, require vast expenses 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 country.
为什么选D | 
