Therefore, the standards which constitutes the reasonable difference treatment will surely include the rationality in the goal and in the preferential benefit degree.

因此，构成合理的差别对待的标准就必然包括目的上的合理性和优惠程度的合理性这两点。

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"Our study showed for the first time a clear difference between oxygen and air in the treatment of acute cluster headache.

VOA: standard.2009.12.17

But their focus will probably be confined to the question of whether the difference in treatment of same-sex and heterosexual married people as far as federal benefits are concerned is unconstitutional.

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So why the difference in the treatment of the two sources of inspiration?

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Why the difference in tax treatment?

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