[单选题] 已知偶函数y=?(x)在区间[a，b](0<a<b)上是增函数，那么它在区间[-b，-a]上是（??）-湖北继续教育网网校

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[单选题][单选题] 已知偶函数y=?(x)在区间[a，b](0

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