听短文，填上所缺的单词。

     I have a    1    neighbour (邻居).Her name is Yang Lan.She is    2    years old.She lives with her family in    3    .She likes English very much.She does very well in it.Every morning,she gets up very early.Then

she reads     4    .She comes to the    5    at 7:30 by    6    .In the English class,she listens to the teacher

very carefully and she oftenanswers the teacher’s questions.All her classmates    7    her be-cause she is a    8    nice girl.

数据库DB、数据库系统DBS、数据库管理系统DBMS三者之间的关系是______。

A．DBS包括DB和DBMS

B．DBMS包括DB和DBS

C．DB包括DBS和DBMS

D．DBS就是DB，也就是DBMS