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八年级数学：怎么求a的b次方的值？二次根式性质，2021成都市期中
八年级数学：怎么求a的b次方的值？二次根式性质，2021成都市期中
实数，无理数，平方根，立方根，二次根式，常考题培优专练383/419
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