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标题: 请教一道逻辑题 [打印本页]

作者: qiqi    时间: 2003-11-13 13:01     标题: 请教一道逻辑题

3. Citizen of Mooresville: Mooresville's current city council is having a ruinous effect on municipal finances. Since a majority of the incumbents are running for reelection, I am going to campaign against all these incumbents in the upcoming city council election. The only incumbent I will support and vote for is the one who represents my own neighborhood, because she has the experience necessary to ensure that our neighborhoods interests are served. If everyone in Mooresville would follow my example, we could substantially change the council's membership.

Assuming that each citizen of Mooresville is allowed to vote only for a city council representative from his or her own neighborhood, for the council's membership to be changed substantially, it must be true that

(A) at least some other voters in Mooresville do not make the same exception for their own incumbent in the upcoming election

(B) most of the eligible voters in Mooresville vote in the upcoming election

(C) few of the incumbents on the Mooresville city council have run for reelection in previous elections

(D) all of the seats on the Mooresville city council are filled by incumbents whose terms are expiring

(E) none of the cha1lengers in the upcoming election for seats on Mooresville's city council are better able to serve the interests of their neighborhoods than were the incumbents
答案为什么是A。实在想不明白。
作者: hopejie    时间: 2003-11-14 15:45

题中的结论是:If everyone in Mooresville would follow my example, we could substantially change the council's membership. 问题问的是一个必要条件,相当于assumption题. 题中的作者说的是唯一一个作者可以支持并选举的在职者是the one who represents my own neighborhood
对于选项A,我们把not 去掉看,选项具有削弱作用,那么加上NOT就可以构成一个假设.




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