GRE考试

【单选题】Which of the following best describes the organization of the passage
A、A、hypothesis is described, challenged by a second hypothesis, then disproved by research.
B、A、hypothesis is described, then confirmed by research, disproving a second hypothesis.
C、A、hypothesis is described, then established by research, then replaced by a second hypothesis.
D、A、hypothesis is described, then modified through research, then compared with a second hypothesis.
E、A、hypothesis is described, then abandoned after research, and replaced with a second hypothesis.
网考网参考答案：A
网考网解析：
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