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如图,已知:抛物线y=ax2+bx+2(a≠0)交x轴于A(﹣1,0),B(4,0)两点,交y轴于点C,与过点C且平行于x轴的直线交于另一点D,点P是抛物线上一动点. (1)求抛物线解析式及点D坐...
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教案备课库《2017-2018学年云南省昆明市盘龙区九年级(上)期末数学试卷》真题及答案
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