爱学堂 堂豆学化学 【3.化学方程式的配平（一）】 一套动画搞定初中化学98%的概念
Synopsis
这套课程以现行的化学教材作为蓝本，结合有趣好懂的动画形式和形象的案例实验，将晦涩的化学逐一瓦解成简单零散的碎片，娃看 ...
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