题目内容
We term data that is stored more-or-less permanently in a computer a __________.
查看答案
搜索结果不匹配？点我反馈
更多问题
The software that allows one or many persons to use and/or modify this data is a __________ __________ __________.
The DBMS makes it more convenient to __________ information(检索信息) from the database.
The data abstraction levels in a DBMS include: __________ level, __________ level and __________ level.
The external level defines the different __________ of the database.
微信支付 
支付宝支付