高中数学代数与函数一函数练习题82
题目内容

设f(x)=|x-1|-|x|,则f[f( http://picflow.koolearn.com/upload/2012-12/14/2985728d-c439-4266-a535-4d649712e427/paper.files/image001.png)]= (    )

2021-08-04

A.-http://picflow.koolearn.com/upload/2012-12/14/2985728d-c439-4266-a535-4d649712e427/paper.files/image001.png

B.2

C.http://picflow.koolearn.com/upload/2012-12/14/2985728d-c439-4266-a535-4d649712e427/paper.files/image001.png

D.1

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