单选

（）is used to model aggregates of information and the relationships these aggregates have to other.

A.Data flow diagram
B.Entity relationship diagram
C.Sequence diagram
D.Structure diagram

试题出自试卷《2017年上半年信息系统监理师考试上午真题（参考答案）》

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（ ）is used to model aggregates of information and the relationships these aggregates have to other.

（）is used to model aggregates of information and the relationships these aggregates have to other.