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七年级上册数学《正数和负数》，趣味教学，电梯有负二，温度有零
七年级上册数学《正数和负数》，趣味教学，电梯有负二，温度有零下-5，你还知道其他关于正数和负数的现象吗？🤪🤪🤪🤪🤪
七年级合集41/59
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