TopicXbox leadership falls apart. what happens next with Phil Spencer and Sarah Bond out? – 1:53
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。关于这个话题，搜狗输入法下载提供了深入分析
There is a special form for boolean formulas called "Conjunctive Normal Form" (CNF). A problem in this form consists of clauses connected with and operators, where each clause only contains variables connected with or operators. The variables can appear negated, but only variables can be directly negated, something like !(a && b) is not allowed. An example boolean formula in CNF form is:
無國界記者北美執行主任韋默斯（Clayton Weimers）在關恆的裁決有結果後表示，「他拍攝的維族集中營影片協助揭露新疆的可怖情況，具有無可估量的新聞價值」，指關恆的庇護案為新聞自由在現任（特朗普）政府執政期間罕見的勝利。