问题
单项选择题
In database technology, Object—Oriented Model belongs to ( )。
A．conceptual data model
B．structure data model
C．physical data model
D．visual data model
答案
参考答案：B
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In database technology, Object—Oriented Model belongs to ( )。
A．conceptual data model
B．structure data model
C．physical data model
D．visual data model
参考答案：B