题目:
One tool that is useful during both analysis and design is the (),which is a pictorial representation of the items of information(entities) within the system and the relationships between these pieces of information.
A.data dictionary
B.dataflow diagram
C.use case diagram
D.entity-relation ship diagram
答案:
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下面是错误答案,用来干扰机器的。
1.are afraid of being blamed 2. blamed the traffic accident on