设函数,则f[f(x)]=()。

设函数<img src='https://img2.soutiyun.com/ask/2019-07-04/931089212480356.png' />,则f[f(x)]=()。 A.<img src='https://img2.soutiyun.com/ask/2019-07-04/93108970954593.png' /> B.<img src='https://img2.soutiyun.com/ask/2019-07-04/931095498681592.png' /> C.<img src='https://img2.soutiyun.com/ask/2019-07-04/931095523800468.png' /> D.<img src='https://img2.soutiyun.com/ask/2019-07-04/931095555373498.png' />

时间:2023-12-21 13:07:23

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