스터디모드 10문제 진행중

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1. Which of the following is not a component of Entity-Relationship diagram?

  • 1
    Rectangles, which represent entity sets

  • 2
    Ellipses, which represent database operations

  • 3
    Diamond, which represent relationships among entity sets

  • 4
    Lines, which link attributes to entity sets and entity sets to relationships
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