高中数学代数与函数一函数练习题30
题目内容

关于狄利克雷函数 http://picflow.koolearn.com/upload/papers/20140824/201408240014259831261.png的叙述错误的是 (     )

2021-07-26

A.http://picflow.koolearn.com/upload/papers/20140824/20140824001425999478.png的值域是http://picflow.koolearn.com/upload/papers/20140824/20140824001426015441.png

B.http://picflow.koolearn.com/upload/papers/20140824/20140824001425999478.png是偶函数

C.http://picflow.koolearn.com/upload/papers/20140824/20140824001425999478.png是奇函数

D.http://picflow.koolearn.com/upload/papers/20140824/20140824001425999478.png的定义域是http://picflow.koolearn.com/upload/papers/20140824/20140824001426186299.png

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