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设不等式组 http://picflow.koolearn.com/upload/papers/20140824/201408240045194541310.png  表示的平面区域为D,若指数函数y= http://picflow.koolearn.com/upload/papers/20140824/20140824004519469332.png的图像上存在区域D上的点,则a 的取值范围是 (   )

发布时间:2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824004519485428.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824004519516420.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824004519532449.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824004519547531.png

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