ile:(4)整式乘除（上）例6.mp4 file:整式乘除（上）.doc file:(3)绝对值的化简求值（下）例3-例4.mp4 file:(1)代数式（下）例7.mp4 file:(2)绝对值方程与不等式（上）例2.mp4 file:绝对值的化简求值（上）.doc file:(2)特殊方程（组）与方程组的应用（上）例3.mp4

ile:(4)整式乘除（上）例6.mp4 file:整式乘除（上）.doc file:(3)绝对值的化简求值（下）例3-例4.mp4 file:(1)代数式（下）例7.mp4 file:(2)绝对值方程与不等式（上）例2.mp4 file:绝对值的化简求值（上）.doc file:(2)特殊方程（组）与方程组的应用（上）例3.mp4