再次，在具体的教学案例中对此进行了实践层面的分析和研究。
Third, it made the analysis and researches of this in the concrete teaching case on the practice level.
在实践层面上，本论文针对口语交际评价的现状，对口语交际表现性评价的内容、工具、方法、评价指标体系、评分等方面进行了研究和探讨。
From the perspective of practice, the thesis makes a study and probe on the content, instrument, method, assessment indicator system and scoring of oral communication assessment.
本文集中对矿业权出让过程中的实践问题，在政策层面进行了研究。
The paper focuses the study around the policy on the practical problems in the course of granting the mining title.
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