已知函数的图象关于直线对称，则的最小正值等于（） A.

已知函数的图象关于直线对称，则的最小正值等于（）

A. B . C. D.

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已知函数的图象关于直线对称，则的最小正值等于（ ） A.

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已知函数的图象关于直线对称，则的最小正值等于（） A.