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已知曲线 http://picflow.koolearn.com/upload/papers/20140823/20140823164857177779.pnghttp://picflow.koolearn.com/upload/papers/20140823/20140823164857193337.png处的切线恰好与抛物线 http://picflow.koolearn.com/upload/papers/20140823/20140823164857208618.png相切,则过该抛物线焦点且垂直于对称轴的直线与抛物线相交得的线段长为(   )

发布时间:2021-07-16

A.http://picflow.koolearn.com/upload/papers/20140823/20140823164857208361.png

B.http://picflow.koolearn.com/upload/papers/20140823/20140823164857224312.png

C.http://picflow.koolearn.com/upload/papers/20140823/20140823164857240311.png

D.imag</p><p>E.png

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