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已知a,b是正数,且满足2<a+2b<4,那么 http://picflow.koolearn.com/upload/papers/20140824/20140824045521844490.png的取值范围是

发布时间:2021-07-19

A.http://picflow.koolearn.com/upload/papers/20140824/20140824045521860678.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824045521875681.png

C.http://picflow.koolearn.com/upload/papers/20140824/20140824045521891659.png

D.http://picflow.koolearn.com/upload/papers/20140824/20140824045521907660.png

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