题目内容
单选题 The data model and the schema of a DBMS are often defined in the () level.
查看答案
搜索结果不匹配？点我反馈
更多问题
单选题 In a three-level DBMS architecture, the ()level interacts directly with the users.
单选题 Of the various database models, the() model is the most prevalent today.
单选题 The () database model arranges its data in the form of an inverted tree.
单选题 In the () database model, each entity can be accessed through multiple paths.
微信支付 
支付宝支付