This article mainly uses literature reference and material method, expert questionnaire method, questionnaire survey method, data statistics method to carry on the investigation and the research.

本文主要采用了文献资料法、专家访谈法、问卷调查法、数据统计等方法来进行调查与研究。

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No reference to their existence appears in any literature of the period.

该时期的任何文献中都没有提及他们的存在。

《柯林斯英汉双解大词典》

Ian Hacking, who wrote a history of probability theory, searched through world literature for any reference to a probability and could find none anywhere before 1600.

伊恩·哈金为概率论追根溯源,他查遍世界所有关于概率的文献,发现无法追溯到十七世纪以前

耶鲁公开课 - 金融市场课程节选

Witnesses to History is literature appropriate for students and the general public, and a reference book for specialists, scholars and decision-makers.

UNESCO: Culture