已知為偶函數(shù).且.當(dāng)時(shí).若.則 A. 2006 B. C. D. 查看更多

 

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已知為偶函數(shù),且,當(dāng)時(shí),;若,則                                         (    )                                          

 

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已知為偶函數(shù),且,當(dāng)時(shí),;若,則                                        (   )                                         

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已知為偶函數(shù),且,當(dāng)時(shí),;若,則                                        (   )                                         

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已知為偶函數(shù),且,當(dāng)時(shí),,若(    )

A.B.C.D.

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已知為偶函數(shù),且,當(dāng)時(shí),,若(    )
A.B.C.D.

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