高中数学代数与函数一其他练习题123
题目内容

动点 http://picflow.koolearn.com/upload/papers/20140824/20140824001755164538.png在区域 http://picflow.koolearn.com/upload/papers/20140824/201408240017551801338.png上运动,则 http://picflow.koolearn.com/upload/papers/20140824/20140824001755195846.png 的范围(   )

2021-07-20

A.http://picflow.koolearn.com/upload/papers/20140824/20140824001755258936.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824001755273854.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824001755492533.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824001755507422.png

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