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2 人教版六年级数学下册第二课《折扣与成数》
感谢广大教育工作者在疫情期间送给孩子们的新年礼物（空中课堂）知识的遗忘或受教育低的缘故让我们对孩子的辅导有心无力，空中课堂让我们重温学习，帮助孩子打牢基础！
6 人教版六年级数学下册（宁夏空中课堂）2/27
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