...中指出了 ACD 的目标是考虑数据浏览者的差异和变化的网络,终端等条件,为用户提供最佳的信息访问能力(Information Accessibility)和感知服务质量(P_QoS,Perceived Quality of Service).
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关系数据库为sql语句提供了从一个以上的表中访问信息的能力,这是通过连接多个表来完成的。
Relational databases provide the capability for the SQL statements to access information from more than one table through a joining of multiple tables.
有了使信息容易访问的能力,终端用户的生产力和工作效率就会得到提高。
The ability to combine this information with easy access elevates the productivity and effectiveness of the end users.
到了2020年互联网的使用扩展了人类的智能;人们一旦得以使用前所未有的方式访问更多的信息智力水平和判断能力都将上到一个新台阶。
By 2020, people's use of the Internet has enhanced human intelligence; as people are allowed unprecedented access to more information, they become smarter and make better choices.
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