問題詳情

1.Multiple Choice (單選題 3pt@8=24pts ) (a) Find a relationship to best describe the relation for the pair of sets: A ∪ B， A∪ (B -A). 

參考答案

答案：[無官方正解]
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)