数据库技术的主要特点为数据的集成性数据的高 【5】 和低冗余性、数据独立性和数据统一管理与控制。
参考答案:共享性
“Neal, listen,” she said, looking straight at him. “I ask you not to get ________ in this kind of matter. It's none of your business.”
A.caught
B.involved
C.attached
D.connected
案头调研的资料来源有()。