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设y=f(x)是偶函数,对于任意正数x都有f(x+2)=-2f(2-x),已知f...
设y=f(x)是偶函数,对于任意正数x都有f(x+2)=-2f(2-x),已知f(-1)=4,则f(-3)等于( )
A.2
B.-2
C.8
D.-8
考点分析:
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)>
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D.
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