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For SAT problems with 10 variables and 200 clauses, it usually output SAT as expected, but the assignment was never valid (Examples: first, second). Once it claimed a SAT formula was UNSAT. For this reason I didn't bother testing with more variables for the SAT case.。关于这个话题，WPS官方版本下载提供了深入分析
Американский лидер отметил, что хотел бы как можно быстрее достичь договоренностей о мире на Украине.，这一点在同城约会中也有详细论述
North American bird population is declining. The decline is accelerating in regions associated with intensive agriculture.