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联系一节化学课,尝试从化学理论、演示实验、化学史、生活实践及审美艺术这五个方面,探讨如何改进“元素化合物”的教学．
Contact a chemistry class and try to explore how to improve the teaching of “elemental compounds” from the aspects of chemistry theory, demonstration experiment, chemistry history, life practice and aesthetic art.