作为马克思恩格斯一生最重要的理论发现，使得社会主义从空想变成科学的有（ ）。
作为马克思恩格斯一生最重要的理论发现，使得社会主义从空想变成科学的有（ ）。
推翻
Passage 1 Almost every family buys at least one copy of a newspaper every day. Some people subscribe(订阅) to as many as two or three newspapers. But why do people read newspapers? Five hundred years ago, news of important happenings—battles lost and won,
Passage 1 Almost every family buys at least one copy of a newspaper every day. Some people subscribe(订阅) to as many as two or three newspapers. But why do people read newspapers? Five hundred years
实践作为检验认识真理性的标准，既是确定的，又是不确定的，是确定性和不确定性的统一。实践标准的确定性即绝对性是指（ ）。
实践作为检验认识真理性的标准，既是确定的，又是不确定的，是确定性和不确定性的统一。实践标准的确定性即绝对性是指（ ）。