数据库管理系统中，为了保证事务的正确执行，维护数据库的完整性，要求数据库系统维护以下
题型：填空题
问题：
数据库管理系统中，为了保证事务的正确执行，维护数据库的完整性，要求数据库系统维护以下事务特性：原子性、______、隔离性和持久性。
题型：填空题
阅读理解。
Our math teacher Mr. Liu is very young. He likes computers very much. My English teacher is Miss Zhao.
She is smart. She likes beautiful clothes. My art teacher is very strong. His name is Li Ping. He likes animals.
把人名和图画匹配起来。
1.
2.
3.
( ) ( ) ( )
A. Mr. Liu B. Li Ping C. Miss Zhao