下列叙述中正确的是【 】

A．数据库系统是一个独立的系统，不需要操作系统的支持

B．数据库设计是指设计数据库管理系统

C．数据库技术的根本目标是要解决数据共享的问题

D．数据库系统中，数据的物理结构必须与逻辑结构一致

用所给形容词的适当形式填空。

1.  She is______ (old) of us all.

2.  English is ______ (important) than math.

3.  This hotel has the ______ (friendly) service in our town.

4.  My home is close to school, his home is ______ (close).

5.  All the movie theaters are good, but the Big Complex has ______  (comfortable) seats.

6.  Which do you like_______(well),this one or that one?

7.  Please speak English as______ (much) as possible.