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标题: cxd的逻辑两道题---求助! [打印本页]

作者: davekuang 时间: 2007-12-6 23:19
标题: cxd的逻辑两道题---求助!

感觉很典型的充分必要推理,但是就是这一类型的搞不清楚,希望高手指点下解题的思路.

1.Ann will either take a leave of absence from Technocomp and return in a year or else she will quit her job there, but she would not do either one unless she were offered a one-year teaching fellowship at a prestigious university. Technocomp will allow her to take a leave of absence if it does not find out that she has been offered that fellowship, but not otherwise. Therefore, Ann will quit her job at Technocomp only if Technocomp finds out she has been offered the fellowship.

Which one of the following, if assumed, allow the conclusion above to be properly drawn?

A. Technocomp will find out about Ann being offered the fellowship only if someone informs on her.

B. The reason Ann wants the fellowship is so she can quit her job at Technocomp.

C. Technocomp will not allow any of its employees to take a leave of absence in order to work for one of its competitors.

D. Ann will take a leave of absence if Technocomp allows her to take a leave of absence.

E. Ann would be offered the fellowship only if she quit her job at Technocomp.

2.Any person who drop out of high school will be unemployed, unless he or she finds a low-paying job or has relatives with good business connections.

Which of the following could not be drawn from the statement above?

A. Any person who drop out of high school , will be unemployed, have a low-paying job, or have relatives with good business connections.

B. Any high school dropout who has neither a low-paying job nor relatives with good business connections will be unemployed.

C. Any employed person who has neither a low-paying job nor relatives with good business connections is not a high school dropout.

D. Any high school dropout who has a job that is not low-paying must have relatives with good business connections.

E. Any person who has relatives with good business connection and who is not a high school dropout must be employed at a job that is not low-paying.

作者: ivysopher 时间: 2007-12-7 12:50

答案是E,B 吧

作者: davekuang 时间: 2007-12-7 23:07

是D和E,不会一题都不对吧?讨论下!

作者: splendidgary 时间: 2007-12-8 00:08
第一题选D，原文的意思是：如果Ann能够得到fellowship，她就会选择take a leave of absence或者quit the job。但是Technocomp公司不允许员工拿到了fellowship再去take a leave of absence，因此一旦被发现得到了fellowship，Ann只能选择quit the job。
A 与someone informs her无关。B中Ann得到fellowship的目的是为了quit the job，这个与原文意思违背。C its competitors无关。E Ann得不得到fellowship跟她是否quit the job无关。所以选D

第二提选E。注意这题是问的Which of the following could not be drawn from the statement above?，既然是NOT,就可以很明显的选出E，因为someone who is not high school dropout的就业情况是不能被推出的。

作者: davekuang 时间: 2007-12-10 12:59

学习了!谢谢了!

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