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已知函数,是的反函数,若(), 则的值为 ( ) A. B.4 C.1 D.10...

已知函数6ec8aac122bd4f6e6ec8aac122bd4f6e6ec8aac122bd4f6e的反函数,若6ec8aac122bd4f6e6ec8aac122bd4f6e),

6ec8aac122bd4f6e的值为      (    )

A.6ec8aac122bd4f6e                             B.4                             C.1                           D.10

 

A 【解析】略
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