双方一辩迅速就竞争的定义、竞争的必要性及竞争的影响等方面进行了开篇立论。
The two sides started to debate quickly about the definition of competition, the need for competition, and the impact of competition.
第一部分是引言，是文章的开篇，主要介绍选题背景，研究意义，相关文献回顾，研究方法及结构安排。
The first part introduction, introduces the paper's background and significance of topics, related research review, research methods and structure arrangement.
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