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What is the past perfect tense? The past perfect tense is used to describe an event that happened before a point of time in the past. In other words, it is used to describe what happened before another action. The formula to form a past perfect tense is had + past participle. A singu...
7 Specifically, Scopus coverage for computer science research has been found to be better than other databases (Cavacini, 2015). Scopus also enables efficient export of the data we use to perform our mapping. Although some venues may not be indexed, many of the most important journals and ...
Chih-Kai Chang, Discovering learning patterns from Web logs by concept transformation analysis (poster session), Proceedings of the 5th annual SIGCSE/SIGCUE ITiCSEconference on Innovation and technology in computer science education, p.186-... Chang,Chih-Kai - ACM 被引量: 6发表: 2000年 POSTER...
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