简单说明选题的依据、目的、研究对象和方法。
The first part of the essay is the introduction: giving a brief illustration of the objective of the topic, research objects and methods.
第一部分为绪论，主要介绍了论文选题的依据、国内外研究现状。
The first part introduces the basis of the thesis, domestic and international research.
这篇论文的导论部分，说明论文选题的依据、重要性，陈述论文期望取得的效果。
The introduction showed the basis of the topic, the importance and the expected results of this paper.
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