CVRS和QQ的功用比较和分析

Comparison and Analysis of CVRS and QQ Functions

通过实践,对CVRS系统和QQ软件的主要功能、主要服务范围和各自的优势和不足之处进行了比较分析。并对读者对这两种软件的使用情况进行了统计和分析。

Not only introduced main function, service range of CVRS and QQ in reference services, but compared and analyzed both the advantage and shortage, Meanwhile it has given statistics and analysis of the usage of the cases of using both the two software packages.