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【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.
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