2.  >>  高等教育 / 离散数学
 高等教育 / 离散数学

14.
设R是A上的关系,若,则称 R在A上是[参考答案：反自反的](分值：2.5)。
得分： 分系统自动批改于2020年12月26日 23点54分
 

(A)(B)(C)(D)
  积分
离散数学
 参考答案：
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