SAT考试9月每日精选题25

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Writing & Language

To determine whether chimpanzees are more likelyto delay gratification for a cooked food reward thanthey are for a raw food reward, cognitionresearcher Felix Warneken and cognitionresearcher Alexandra Rosati conducted anexperiment comparing chimpanzees' decisions in twosituations: a "raw-delay" condition and a "cooked-delay" condition. In the raw-delay condition, Warneken and Rosati offered the chimpanzees a choice between receiving a piece of raw foodimmediately and waiting for one minute to receive three pieces of raw food; the chimpanzeeschose the larger, delayed reward 60 percent of the time. In the cooked-delay condition, inwhich the chimpanzees could receive one piece of raw food immediately or wait one minute forthree pieces of cooked food, they chose the larger, delayed reward approximately 85 percentof the time.

A.NO CHANGE

B.cognition researcher Felix Warneken and, another cognition researcher,

C.cognition researchers Felix Warneken and

D.two cognition researchers by the names of Felix Warneken and

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答案：C

解析：

Choice C is the best answer because it offers clear and concise wording for the paragraph's introduction of the two researchers.

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