在UML用例图中，参与者表示（ ）。
- A.人、硬件或其他系统可以扮演的角色
- B.可以完成多种动作的相同用户
- C.不管角色的实际物理用户
- D.带接口的物理系统或者硬件设计
正确答案及解析
正确答案
解析
此题考查UML基础知识，参与者是actor，是指系统中的人，硬件或者某个系统功能的角色。
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