問題詳情

13. Suppose thatΩ ={a,b, c,d,e} and A and B are subsets of Ω. It is known that the complemnentof A, Ac = {a,b,c} and the complement of B, Bc = {b,c,d}, What is the complement of A or

?
(A) {d}；
(B) {b,c}；
(C) {a，e}；
(D){a,b,c,d}；
(E) {a,d,e}.

參考答案

答案：[無官方正解]
難度：計算中-1
書單：沒有書單，新增