6[单选题] 下列各组的两个判断之间具有"不能同假，可以同真"关系的是 A."所有的城市都有市花"、 "有的城市没有市花" B."有的科研成果是论文"、 "有的科研成果不是论文" C - 查题网

>> 河南成教 / 法律逻辑学

河南成教 / 法律逻辑学

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6[单选题]
下列各组的两个判断之间具有"不能同假，可以同真"关系的是

A."所有的城市都有市花"、 "有的城市没有市花"

B."有的科研成果是论文"、 "有的科研成果不是论文"

C."教师都是知识分子"、 "有的教师不是知识分子"

D."凡金属都有延展性"、 "凡金属都没有延展性"

积分

法律逻辑学

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