... 通过研究这些化石 By Studying The Fossils 通过研究这些问题 By Studying These Problems 通过研究这些现象 By Studying Those Phenomena ...
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Methods the status of psychological problems of college students was observed by studying the performance of these psychological problems.
方法通过研究大学生心理问题的表现，观察大学生心理问题的现状。
By studying these threats, problems and their causes will help to build the system, complete, secure e-government safety management system.
通过研究这些威胁、问题及其产生的原因，将有助于构建系统的、完整的、安全的电子政务安全管理体系。
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