This paper, based on the previous research, from the Angle of economics, analyzes the phenomenon of village in the city.

本文在前人研究的基础上，从经济分析的立场对城中村现象进行研究。

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Based on the previous research and physical health test results of the students, the research is done in the division of Anhui University students.

本文在前人研究的基础上，依据大学生体质健康测试成绩，对安徽省高校学生进行分组研究。

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Based on the previous research by other scholars, this thesis discussed the adverbs of degree of Tai an dialect which express the meaning of "very".

本文在前人研究基础上对泰安方言中表示“很、非常”意义的这一类程度副词进行了分析，这类程度副词一般被称为“很”类程度副词。

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Based on the previous failed attempts of Research in Motion (NASDAQ:RIMM) and Hewlett-Packard (NYSE:HPQ), the answer is definitely no, at least not in the overall market.

FORBES: Amazon.com versus Apple: Who Wins?

Like much of the previous research on coffee, the study was based on survey data -- in this case, a single questionnaire distributed in the mid-1990s -- that may provide an incomplete picture of the participants' overall health and lifestyle.

CNN: Coffee drinking linked to longer life

Nowhere is this more true than in research that builds computer models to predict the spread of outbreaks, based on previous ones.

CNN: Scientists dig for lessons from past pandemics