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初中数学：已知5m=3，5n=2，怎么求52m-3n的值？幂的运算，常考题
初中数学：已知5m=3，5n=2，怎么求52m-3n的值？幂的运算，常考题
初中数学，幂的运算，幂的大小比较，基础训练，培优专题153/191
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