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人教A版选择必修2函数的切线，P85，图5.3-3
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人教A版选择必修2P62抛物线f(x)=x2的割线和切线
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人教A版选择必修2P63割线斜率的极限（表格文本）
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人教A版选择必修2P64跳台跳水
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人教A版选择必修2P61平均速度的极限（表格文本）
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人教A版选择必修2P26拓广探索第12题：三角垛
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人教A版选择必修2P23例9前n项和与二次函数的关系
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人教A版选择必修2P14教材配图等差数列与一次函数
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人教A版选择必修2P22探究等差数列的前n项和与二次函数的关系
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人教A版选择必修2P10兔子繁殖斐波那契数列（树状图版）
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高中数学人教A版选择必修一教材P113例6椭圆第二定义
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高中数学人教A版选择必修一P123离心率刻画双曲线的“张口”大小
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