I learned that for 4-SAT, if clause to variable ratio is more than 10, the generated problems become difficult to solve, and the likelihood of formula to be SAT or UNSAT is close to 50%. So I generated 3 types of formulas:
今年38歲的他在國內做過數份工作，甚至還開過餐廳，偷渡離開中國前是一名自由職業者。
。关于这个话题，Line官方版本下载提供了深入分析
"I have spent my entire career covering the news. I will not stop now," he said soon after he was arrested.
当地时间2月28日，巴基斯坦方面公布截至当日9时的阿富汗方面损失情况。通报称，阿富汗方面已有331人死亡，超500人受伤。此外，阿方104个检查哨所被摧毁、22个哨所被占领，163辆坦克和武装车辆被摧毁，阿境内37个地点已被有效锁定为空袭目标。