Chapter Three delineates the research methodology, including research questions and hypotheses, subjects, study instruments, description of the experiment, data collection and data analysis.

第三章描述研究方法，包括研究问题和假设，研究对象，研究工具，实验描述，数据收集和数据分析。

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The first chapter introduces the research questions and hypotheses on the basis of the general depictions of current research about self-repairs and the necessity and importance of this study.

第一章简单说明了有关自我纠正研究的现状，指出本文研究的必要性和重要性，并由此提出研究问题和假设。

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Hypotheses and theories are part of the scientific method - the process of asking and answering questions by experimentation.

假设和理论，都是科学方法的一部分——它们是提出问题和依靠试验来回答问题的过程。

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When U.S. intelligence tracked down Osama bin Laden, it was a function of brilliant, resourceful people asking questions and testing hypotheses using a variety of technologies.

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Thus, they identify hypotheses and questions that need to be answered and try to answer those questions in the lowest cost manner possible.

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The heliocentric theory answered these questions and suggested a whole range of useful hypotheses about the rest of the universe.

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