最后，畏惧风险，等同于扼杀创造力——因为一切真正的创造，本质上都是一次冒险。
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Venezuela — Venevision
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.