字幕是自动生成,有错没改。语言有点不精练。记录一下我目前的水平,一周的时间可以备出怎样的一节课。 物体的浮沉条件及应用 物体的浮沉条件教学视频 物体的浮沉条件及应用优质课 物体的浮沉条件及生活应用 物体浮沉的现象和条件 物体的浮沉条件及应用教学流程 物体的浮沉条件及应用问题 物体的浮沉条件七个典型问题 物体的浮沉条件及应用教案 物体浮沉条件的小实验视频 【实录】物体的浮沉条件及应用
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