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software stack, they were more flexible, designed to work with simpler host
，推荐阅读safew官方版本下载获取更多信息
绝对贫困历史性消除，为什么要设立5年过渡期？
No plagiarism checker
If we think about this algebraically, what we really want to do is express the input pixel as the weighted sum of palette colours. This is nothing more than a linear combination of palette colours with weights :