其一是作者布局复杂论证的能力，因为这需要读者仔细地研究，反复地阅读，跟踪一系列迂回曲折的推理过程。
One is the author's capacity to lay out a complex argument, which requires the reader to study and reread, following a circuitous29 course of reasoning.
良好使用者，有能力运用英语，虽然在某些情况下有时会发生不精确， 不适当和误解。大致上掌握了复杂的英语，可以理解详细的论证推理。
Has operational command of the language though with occasional inaccuracies and misunderstandings in some situations. Generally handles complex language well and understands detailed reasoning.
本文首先对推理论证作了概述，在此基础上分析了推理论证能力的结构：牢固的数学基础知识；
Firstly, this thesis gives a brief introduction of reasoning and demonstration, and bases on it, analyzes the structure as well. It is: solid basic knowledge of mathematics;
本文首先对推理论证作了概述，在此基础上分析了推理论证能力的结构：牢固的数学基础知识；
Firstly, this thesis gives a brief introduction of reasoning and demonstration, and bases on it, analyzes the structure as well. It is: solid basic knowledge of mathematics;
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