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最后再问三道逻辑题,求解答

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楼主
发表于 2012-4-19 19:21:14 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
28.    Critics of sales seminars run by outside consultants point out that since 1987, revenues of vacuum cleaner companies whose employees attended consultant-led seminars were lower than revenues of vacuum cleaner companies whose employees did not attend such seminars. The critics charge that for vacuum cleaner companies, the sales seminars are ill conceived and a waste of money.
Which of the following, if true, is the most effective challenge to the critics of sales seminars?
(A) Those vacuum cleaner companies whose sales were highest prior to 1987 are the only companies that did not send employees to the seminars.
(B) Vacuum cleaner companies that have sent employees to sales seminars since 1987 experienced a greater drop in sales than they had prior to 1987.
(C) The cost of vacuum cleaner sales seminars run by outside consultants has risen dramatically since 1987.
(D) The poor design of vacuum cleaner sales seminars is not the only reason for their ineffectiveness.
(E) Since 1987, sales of vacuum cleaners have risen twenty percent.
选A,完全不明白

33.    Some analysts maintain that an embargo by country Litora on the export of a strategic metal to country Zenda, if imposed, would drive up the price of the metal in Zenda at least tenfold. They note that few other countries export the metal and that, with an embargo, Zenda might have to depend on as-yet-unexploited domestic sources of the metal.
Which of the following, if true, constitutes the most serious objection to the analysis above?
(A) Litora’s economy depends heavily on foreign currency earned by the export of the strategic metal to other countries.
(B) There are foreign-policy steps that Zenda could take to appease Litora and avoid being subjected to an embargo on the metal.
(C) Geologists believe that additional deposits of the metal could possibly be found within the territory of Litora.
(D) Only a small proportion of Zenda’s import expenditures is devoted to the import of the metal from Litora.
(E) In case of an embargo, Zenda could buy the metal indirectly from Litora on the world market at a less than one-third increase in cost.
选E,为什么B不对?


42.    When people predict that certain result will not take place unless a certain action is taken, they believe that they have learned that the prediction is correct when the action is taken and the result occurs. On reflection, however, it often becomes clear that the result admits of more than one interpretation.
Which of the following, if true, best supports the claims above?
(A) Judging the success of an action requires specifying the goal of the action.
(B) Judging which action to take after a prediction is made requires knowing about other actions that have been successful in similar past situations.
(C) Learning whether a certain predictive strategy is good requires knowing the result using that strategy through several trials.
(D) Distinguishing a correct prediction and effective action from an incorrect prediction and ineffective action is often impossible.
(E) Making a successful prediction requires knowing the facts about the context of that prediction.
选D,为什么?

其他逻辑题错了也就明白了,这几道一直不懂,求解,大榭~
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沙发
发表于 2012-4-19 19:46:01 | 只看该作者
第一个是说  对vacuum cleaner companies ,1987年之后,参加了consultant-led seminars 的公司的收入比没有参加的要低,因此这个讨论会是没有用的

问哪个选项不支持这个结论

然后a是说在1987年之前,收入最高的本来就是1987年之后没有参加讨论会的公司,参加了讨论会的公司可能本来收入就比较低,即使讨论班有积极的作用,他的收入还是比较低的
因此后面的比较是没有意义的
板凳
发表于 2012-4-19 19:49:45 | 只看该作者
第二个,文中没有提到国外的相关政策啊
地板
 楼主| 发表于 2012-4-19 20:24:45 | 只看该作者
对的,虽然是没提到国外政策,可是不是说是假设哪个对吗?如果没有禁运是不是更能反对呢?我是这么想的。可是答案的意思好像是说即使禁运还是可以低价买进
5#
 楼主| 发表于 2012-4-19 20:25:08 | 只看该作者
还有那个第3题是什么意思?
6#
发表于 2012-4-19 22:41:16 | 只看该作者
我觉得第二题应该选b啊
题目中说禁运会涨十分之一
然后e是说可以以低于上涨三分之一的价格买到,没有优势啊
7#
发表于 2012-6-29 22:31:29 | 只看该作者
第三题呢
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