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2023, Vol. 44(9): 56-61    DOI: 10.13884/j.1003-3807hxjy.2022010045
Review Lesson Teaching Practice Based on Chemical History: “Preparation of Common Gases” in Junior High School Chemistry
CHEN Li-Ming1**, LI De-Qian2, JING Xue-Qian3, ZHANG Yi2
1. Gulou Teacher Development Center, Xuzhou 221000, China;
2. Xiyuan Middle School of Xuzhou, Xuzhou 221000, China;
3. Tongshan Sanbao Central Middle School, Xuzhou 221112, China
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