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来自美国波士顿
来自美国波士顿
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来自美国波士顿
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The length of the text and references should not exceed 15 pages of double-spaced type. The number of figures and tables together should not exceed 20. The text of the article is usually
including a concise review of only the relevant literature. State your hypothesis and the purpose of the study. It is preferable that this be done in the form of a research question that describes the setting of the study