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医学文献和文献检索概论哈尔滨医科大学图书馆下一页第一节医学文献第二节医学文献检索上一页下一页第一节医学文献信息、知识、情报、文献作用类型现状特征医学文献上一页下一页一、信息、知识、情报、文献1、信息是对客观世界中各种事物的变化和特征的反应;是客观事物之间相互作用和联系的表征;是客观事物经过感知或认识后的再现。在人类社会中,信息是以语言、文字、符号、图形、声波、光波、电磁波等形式传递,以纸张、胶片、磁带、光盘等作为纪录知识的载体来表示。信息是不同于物质和能量的一种特殊资源。上一页下一页2、知识知识是人类对客观事物的认识、实践经验的总结。知识是一种特定的人类信息,它是对信...
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