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2019, Vol. 40(5): 40-45    DOI: 10.13884/j.1003-3807hxjy.2017100052
Quantitative Analysis of Speech and Behavior in Teaching and Learning Based on Classroom Observation: Case Study of the Composition of Water
YANG Cheng-Yin, WANG Huan-Zhen
School of Chemistry & Chemical Engineering, Shaanxi Normal University, Xi'an 710119, China
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