初二物理杠杆、浮力练习题难度适中,最好附带答案.越快越好,越多越好
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![初二物理杠杆、浮力练习题难度适中,最好附带答案.越快越好,越多越好](/uploads/image/z/2671367-23-7.jpg?t=%E5%88%9D%E4%BA%8C%E7%89%A9%E7%90%86%E6%9D%A0%E6%9D%86%E3%80%81%E6%B5%AE%E5%8A%9B%E7%BB%83%E4%B9%A0%E9%A2%98%E9%9A%BE%E5%BA%A6%E9%80%82%E4%B8%AD%2C%E6%9C%80%E5%A5%BD%E9%99%84%E5%B8%A6%E7%AD%94%E6%A1%88.%E8%B6%8A%E5%BF%AB%E8%B6%8A%E5%A5%BD%2C%E8%B6%8A%E5%A4%9A%E8%B6%8A%E5%A5%BD)
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