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A.[2,+∞) B.(0,1)∪(1,2) C.[,1) D.(0,]
(10)已知函数y=f(x)的图象与函数y=ax(a>0且a=1)的图象关于直线y=x对称,
记g(x)=f(x)[f(x)+f(2)-1].若y=g(x)在区间[,2]上是增函数,则实数a的取值范围是
(A)[2,+∞) (B)(0,1)∪(1,2) (C)[,1) (D)(0,]