标题: 5-19 帮忙解决几个逻辑问题：） [打印本页] 作者: oliverwangchao 时间: 2011-5-19 19:18 标题: 5-19 帮忙解决几个逻辑问题：） 1. Some observers have concluded that the rise in the price of pepper means that the switch by some growers from pepper to cocoa left those growers no better off than if none of them had swiched; this conclusion, however, is unwarranted because it can be inferred to be likely that (A) Those growers could not have forseen how high the price of pepper would go (B) the initial cost involved in switching from pepper to cocoa is substantial (C) supplies of pepper would not be as low as they are if those growers had not switched crops (KEY) (D) cocoa crops are as susceptible to being reduced by bad weather as are pepper crops (E) as more growers turn to growing cocoa, cocoa supplies will increase and the price of cocoa will fall precipitously.
2 In a political system with only two major parties, the entrance of a third-party candidate into an election race damages the chances of only one of the two major candidates. The third-party candidate always attracts some of the voters who might otherwise have voted for one of the two major candidates. Since a third-party candidacy affects the two major candidates unequally, for reasons neither of them has any control over, the practice is unfair and should not be allowed. If the factual information in the passage above is true, which of the following can be mostly reliably inferred from it? (A) If the political platform of the third party is a compromise position between that of the two major parties, the third party will draw its voters equally from the two major parties. (B) If, before the emergence of a third party, voters were divided equally between the two major parties, neither of the major parties is likely to capture much more than one-half of the vote(KEY) (C) A third-party candidate will not capture the votes of new voters who have never voted for candidates of either of the two major parties. (D) The politica stance of a third party will be more radical than that of either of the two major parties. (E) The founders of a third party are likely to be a coalition consisting of former leaders of the two major parties.作者: colasama 时间: 2011-6-12 03:21
1. 基本概念：供求决定价格 题目说现在pepper价格涨了，所以把自己作物从pepper变成cocoa的农民是傻帽，白忙活。 C说，如果这些农民没有转成cocoa，而是继续种pepper，现在pepper的供给就不会那么少（言下之意，需求不变的话，现在pepper价格不会涨）
2. 挺无聊的一道题... 两党势均力敌的时候，如果引入第三方会打破平衡。但题目说引入第三方不fair, should not be allowed。 所以平衡不会被打破....