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数学7上：已知|2a-b|与(b-1)²互为相反数，怎么求(a+b)³的值？
数学7上：已知|2a-b|与(b-1)²互为相反数，怎么求(a+b)³的值？
初中数学，有理数基础定义，大小比较，运算法则，培优专题44/82
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