Surgeon James Hewes has noticed a rise in patients with gallstones
（二）提供众测平台服务的，应当核验相关授权证明文件；
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澳大利亚广播公司（ABC）新闻核查团队对该视频逐帧分析，并与其他已核实的视频进行比对，以更清楚地还原袭击是如何展开的。
All of the examples demonstrating ordered dithering so far have been produced using a specific type of threshold matrix commonly known as a Bayer matrix. In theory however any matrix could be used and a number of alternatives are available depending on your qualitative preference. Matrices also don’t have to be square or even rectangular; polyomino-based dithering matrices have been explored as well[6].