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[GMAT逻辑题讨论] Prep2012逻辑第3题

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icetong123 发表于 2014-10-25 10:03:00 | 显示全部楼层 |阅读模式
Guitar strings often go “dead”—become less responsive and bright in tone—after a few weeks of intense use. A
researcher whose son is a classical guitarist hypothesized that dirt and oil, rather than changes in the material
properties of the string, were responsible.
Which of the following investigations is most likely to yield significant information that would help to evaluate the
researcher‘s hypothesis?
A. Determining if a metal alloy is used to make the strings used by classical guitarists
B. Determining whether classical guitarists make their strings go dead faster than do folk guitarists
C. Determining whether identical lengths of string, of the same gauge, go dead at different rates when strung on
various brands of guitars
D. Determining whether a dead string and a new string produce different qualities of sound
E. Determining whether smearing various substances on new guitar strings causes them to go dead

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