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定义运算http://picflow.koolearn.com/upload/papers/g02/20110524/20110524094854921902.gif:xhttp://picflow.koolearn.com/upload/papers/g02/20110524/20110524094854937902.gify=x(1-y),若不等式(x-a)http://picflow.koolearn.com/upload/papers/g02/20111017/20111017093710001.gif(x+a)<1对任意实数x 成立,则实数a的取值范围是

发布时间:2021-07-20

A.-1

B.0

C.-http://picflow.koolearn.com/upload/papers/g02/20110524/20110524094854953933.gif

D.-http://picflow.koolearn.com/upload/papers/g02/20110524/20110524094855000923.gif

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