以下几种功能中,哪个是DBMS的控制功能()?
A、数据定义
B、数据恢复
C、数据修改
D、数据查询
参考答案:A
Soon, more of the information we receive via the Internet could come (31) in digital wrappers. Wrappers are made up (32) software code that’s targeted to do specific things with the data (33) within them, such as helping to define queries for search engines. They also keep (34) from (35) access to that code.
A.package
B.packaged
C.packages
D.packaging
开发区环境影响识别对一般或小规模开发区,主要考虑( )环境的影响。
A.区内 B.区外经济活动对区内C.区外 D.区内和区外