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Middle East crisis – live updates
，这一点在Safew下载中也有详细论述
阿联酋阿布扎比3月5日再次遭到袭击。阿联酋国家紧急危机和灾害应对部门表示，防空系统目前正在应对导弹威胁。请民众待在安全地点，并通过官方渠道获取最新消息。（央视新闻）
the point i want to get to with Thompson’s paper is that the last few sentences of Thompson’s original paper actually mention the possibility of intersection and complement (below), but the funny thing is that this footnote has been forgotten for decades, and no one ever followed through.. and for the ones who tried, in fact, it wasn’t so easy in Thompson’s NFA framework at all, the devil is in the details.