- 2018年03月17日14:21 来源：小站整理
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Writing & Language
After reading the passage, choose the answer to the question that most effectively improves the quality of writing in the passage or that makes the passage conform to the conventions of standard written English. Sometimes the question will include a "NO CHANGE" option. Choose that option if you think the best choice is to leave the relevant portion of the passage as it is.
To determine whether chimpanzees are more likely to delay gratification for a cooked food reward than they are for a raw food reward, 1 cognition researcher Felix Warneken and cognition researcher Alexandra Rosati conducted an experiment comparing chimpanzees’ decisions in two situations: 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 food immediately and waiting for one minute to receive three pieces of raw food; the chimpanzees chose the larger, delayed reward 60 percent of the time. In the cooked-delay condition, in which the chimpanzees could receive one piece of raw food immediately or wait one minute for three pieces of cooked food, they chose the larger, delayed reward approximately 85 percent of the time.
Select an AnswerAnswer
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
C：cognition researchers Felix Warneken and
Choice C is the best answer because it offers clear and concise wording for the paragraph’s introduction of the two researchers.