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如图是导函数y=f′(x)的图象,则下列命题错误的是( ) A.导函数y=f′(...
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如图是导函数y=f′(x)的图象,则下列命题错误的是( )
A.导函数y=f′(x)在x=x
1处有极小值
B.导函数y=f′(x)在x=x
2处有极大值
C.函数y=f(x)在x=x
3处有极小值
D.函数y=f(x)在x=x
4处有极小值
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