This formula is satisfiable because if we set to b to true and a to false, then the whole formula is true. All other assignments make the formula false, but it doesn't change that the formula is satisfiable as long as there is at least one assignment makes the formula true.
Tkachuk expresses regret over Trump joke
。业内人士推荐搜狗输入法2026作为进阶阅读
更重要的是，被给予厚望的日产 N6 和 N7 均表现不佳，N6 仅售出了 3012 辆，上市 4 个月以来累计售出 10399 辆，而风光一时的 N7 销量也在持续下行，1 月份仅售出了 978 辆。。业内人士推荐旺商聊官方下载作为进阶阅读
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Uncertainty reigns