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第四十一条 国家建立健全核安保制度，加强原子能研究、开发和利用活动的安全保卫工作。
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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.