問題詳情
9. 已知n為正整數，請問(－1)n•(－1)n＋1＋1的值為多少？
(A)1
(B)－1
(C)0
(D)2
(E)n+1 (BD)n
(A)1
(B)－1
(C)0
(D)2
(E)n+1 (BD)n
參考答案
無參考答案
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