题目内容
函数f(x)的部分图象如图所示,则函数f(x)的解析式可以是( ) 
2021-08-03
A.f(x)=x-s1n x
B.f(x)=
C.f(x)=2xcos x
D.f(x)=x·(|x|-
)·(|x|-
)
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