The star schema is星型模式是:()?
（A）Built on a central dimension table and a set of fact table建立在一个中心维度表和一组事实表之上
（B）Based on dimensions such as'customer'and'product'基于“客户”和“产品”等维度
（C）All所有
（D）A common data model for data warehouse applications数据仓库应用的公共数据模型
（E）Very efficient for transaction processing非常高效的事务处理 答案解析:
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