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习题教学是高中化学课堂教学的重要一环,所谓的“精选精讲精练”是针对习题训练的实效性而言的,电离平衡是学生普遍感到抽象和难学的章节,一题多变可帮助学生深刻地理
Exercise teaching is an important part of high school chemistry class teaching. The so-called “selected intensive exquisite training” is in terms of the effectiveness of exercise training. Ionization balance is a chapter that students generally feel abstract and difficult to learn. Change can help students deep geography