今天为大家带来一篇GMAT逻辑题练习及答案，以下是详细内容

　　GMAT逻辑题目:

　　Guitarstrings often go “dead”—become less responsive and bright in tone—after a fewweeks of intense use. A researcher whose son is a classical guitaristhypothesized that dirt and oil, rather than changes in the material propertiesof the string, were responsible.

　　Whichof the following investigations is most likely to yield significant informationthat would help to evaluate the researcher‘s hypothesis?

　　A. Determining if a metal alloy isused to make the strings used by classical guitarists

　　B. Determining whether classicalguitarists make their strings go dead faster than do folk guitarists

　　C. Determining whether identicallengths of string, of the same gauge, go dead at different rates when strung onvarious brands of guitars

　　D. Determining whether a dead stringand a new string produce different qualities of sound

　　E. Determining whether smearingvarious substances on new guitar strings causes them to go dead

       以上是本文的详细内容，希望对大家的GMAT复习备考有所帮助。

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