Chunyang Wan

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Internet based education media are developing at an amazing rate and being seen as an upstart that is likely to dominate traditional education means worldwide in the future. This paper presents and discusses empirical results of a comparative analysis of user preferences for four major types of internet-based education media being used in China. In this(More)
OBJECTIVE To investigate the effects of Tongfeng trace elements nutrient balance agent on the various growth indicators, physiological indicators, and the contents of liquiritin and glycyrrhizic acid in one-year old Glycyrrhiza uralensis. METHOD The plants of G. uralensis growing in Chifeng of Inner Mongolia and medicinal garden of Beijing University of(More)
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