7月30日 GMAT数学逻辑每日一练

　　【数学】

　　There are 11 women and 9 men ina certain club. If the club is to selecta committee of 2 women and 2 men, how many different such committees arepossible?

　　A. 120

　　B. 720

　　C. 1,060

　　D. 1,520

　　E. 1,980

　　【逻辑】

　　Behind the hope that computers can replace teachers is theidea that the student’s understanding of the subject being taught consists inknowing facts and rules, the job of a teacher being to make the facts and rulesexplicit and convey them to the students, either by practice drills or bycoaching. If that were indeed the way the mind works, the teacher couldtransfer facts and rules to the computer, which could replace the teacher asdrillmaster and coach. But since understanding does not consist merely ofknowing facts and rules, but of the grasp of the general concepts underlyingthem, the hope that the computer will eventually replace the teacher isfundamentally misguided.

　　Which one of the following, if true, would most seriouslyundermine the author’s conclusion that computers will not eventually be able toreplace teachers?

　　A. Computers are asgood as teachers at drilling students on facts and rules.

　　B. The job of ateacher is to make students understand the general concepts underlying specificfacts and rules.

　　C. It is possible toprogram computers so that they can teach the understanding of general conceptsthat underlie specific facts and rules.

　　D. Because they arenot subject to human error, computers are better than teachers at conveyingfacts and rules.

　　E. It is notpossible for students to develop an understanding of the concepts underlyingfacts and rules through practice drills and coaching.

　　答案

　　【数学】

　　参考答案：E

　　题目翻译：11女9男，选2男2女，几种选法？

　　题目全解：C(2,11)*C(2,9)=(11*10*9*8)/4=1980

　　【逻辑】

　　参考答案:C

　　A. 不是主要的weaken

　　B. 不关题意

　　C. 因为Premise: Thecomputers cannot make students to grasp of the general concepts underlyingthem Conclusion: The computer will not eventually replace theteacher，而C直接补上了这个空缺

　　D. 不关题意

　　E. 反，正好支持了作者的观点

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