论文部分内容阅读
２１世纪人类社会进入信息化社会,信息社会的特征之一就是知识更新周期迅速缩短,书刊文献资料急剧增长,人们对信息资源的需求越来越迫切。
In the 21st century, when human society entered the information society, one of the characteristics of the information society is that the cycle of knowledge updating is rapidly shortened, and the literature and publications of literature and publications are rapidly increasing. People’s demand for information resources is becoming more and more urgent.