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《(2012)GMAT官方指南》 OG 12

《(2012)GMAT官方指南》是GMAC（GMAT考试命题机构）中国大陆的单家授权版本，是GMAT考试必备参考书。书中提供超过800道全真试题，涵盖GMAT考试所有题型，并配有全面的答案解析。题目按难易程度排列，帮助考生节省备考时间。 其中，OG12的CR部分共有 124 题，全部经由老师核对确认并标上题号及难度（根据官方标准划分）。

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序号 题目内容
121 Codex Berinensis, a Florentine copy of an ancient Roman medical treatise, is undated but contains clues to when it was produced. Its first 80 pages are by a single copyist, but the remaining 20 pages are by three different copyists, which indicates some significant disruption. Since a letter in handwriting identified as that of the fourth copyist mentions a plague that killed many people in Florence in 1148, Codex Berinensis was probably produced in that year.Which of the following, if true, most strongly supports the hypothesis that Codex Berinensis was produced in 1148?
122 The spacing of the four holes on a fragment of a bone flute excavated at a Neanderthal campsite is just what is required to play the third through sixth notes of the diatonic scale--the seven-note musical scale used in much of Western music since the Renaissance. Musicologists therefore hypothesize that the diatonic musical scale was developed and used thousands of years before it was adopted by Western musicians.Which of the following, if true, most strongly supports the hypothesis?
123 Outsourcing is the practice of obtaining from an independent supplier a product or service that a company has previously provided for itself. Since a company`s chief objective is to realize the highest possible year-end profits, any product or service that can be obtained from an independent supplier for less than it would cost the company to provide the product or service on its own should be outsourced.Which of the following, if true, most seriously weakens the argument?
124 Museums that house Renaissance oil paintings typically store them in environment that are carefully kept within narrow margins of temperature and humidity to inhibit any deterioration. Laboratory tests have shown that the kind of oil paint used in these paintings actually adjusts to climatic changes quite well. If, as some museum directors believe, paint is the most sensitive substance in these works, then by relaxing the standards for temperature and humidity control, museums can reduce energy costs without risking damage to these paintings. Museums would be rash to relax those standards, however, since results of preliminary tests indicate that gesso, a compound routinely used by Renaissance artists to help paint adhere to the canvas, is unable to withstand significant variations in humidity.In the argument above, the two portions in boldface play which of the following roles?

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