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[小站机经与真题] 【17年12月15日GRE阅读机经】短阅读真题预测与参考答案:Few mathematical constructs seem as conceptu...

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发表于 2017-12-5 17:04 | 小站社区iPhone客户端

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12月15日GRE阅读逻辑预测机经
12月GRE一共有3场考试:(点击日期查看本场考试相关备战指导)

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本场GRE机经预测分为长篇阅读、短篇阅读和逻辑阅读三大类,每题都提供正确答案思路解析

【精 彩 预 告】
本月共3场考试,12月15日考后会及时发布真题回忆,请持续关注!
Few mathematical constructs seem as conceptually simple as that of randomness. According to the traditional definition, a number is random if it is chosen purely as the result of a probabilistic mechanism such as the roll of a fair die. Id their ground breaking work regarding complexity and the limitations of formal systems, mathematicians Gregory Chaitin and A.N. Kolmogorov force us to consider this last claim more closely.

Consider two possible outcomes of throwing a fair die three times: first, 1, 6, and 2; second 3, 3, and 3. Now let us construct two three-member sets based on the results. Though the first set— {1,6,2}—intuitively seems more random than the second—{3,3,3}, they are each as likely to occur, and thus according to the accepted definition, must be considered equally random. This unwelcome result prompts Chaitin and Kolmogorov to suggest the need for a new standard of randomness, one that relies on the internal coherence of the set as opposed to its origin.


1. Which of the following best describes the organization of the passage as whole?

A. A concept is introduced; a traditional definition is put forward; a thought experiment is described; a new definition is proposed; the traditional definition is amended as a result.
B. A concept is introduced; a traditional definition is supported by authorities; a thought experiment is described; the implications of the experiment are discussed.
C. A concept is introduced; a traditional definition is considered and rejected; a thought experiment is described; a new definition is proposed.
D. A concept is introduced; a traditional definition is called into question; a thought experiment is described; the implications of the experiment are discussed.
E. A concept is introduced; authorities are called in to reevaluate a definition; a thought experiment is described; the implications of the experiment are considered and rejected.

2. Consider each of the choices separately and select all that apply. Which of the following is an inference made in the passage above?

A. The results of the same probabilistic mechanism will each be as likely as the other to occur.
B. According to the traditional definition of randomness, two numbers should be considered equally random if they result from the same probabilistic mechanism.
C. Different probabilistic mechanisms are likely to result in similar outcomes.

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