Москвичи пожаловались на зловонную квартиру-свалку с телами животных и тараканами18:04
在广东省中医院传统疗法中心门诊，记者见到一名因肩颈疼痛失眠的女士。只见医生用镊子从塑料盒中夹出一只活蜂，放到她左脚底的穴位上，蜜蜂尾部轻轻一蜇，随后释放出蜂针。医生迅速将蜜蜂拿开，数分钟后再拔出蜂针……
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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:，详情可参考safew官方下载
function createBufferWriter() {