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初二-物理(北京版)温度 温度计
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初二-物理(人教版)动能和势能
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初二-物理(北京版)功率
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初二-物理(师大版)弹力
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初二-物理(北京版)功
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初二-物理(人教版)二力平衡
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初二-物理(北京版)生活中的透镜
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初二-物理(师大版)重力
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初二-物理(人教版)摩擦力
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初二-物理(师大版)压强
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初二-物理(人教版)浮力
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初二-物理(北京版)动能
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