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noreply69 有没有这样的数学书或资料，教你从基本的方程或等式出题？
数学  •  noreply69  •  Jun 28, 2019  •  Lastly replied by Vendettar 		3
gujiaxi 明天就要高考了
随想  •  gujiaxi  •  Jun 6, 2012  •  Lastly replied by fly2never 		17
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