問題詳情
7.關於下列數的敘述，何者正確？
(A)若 a．b 為偶數，則 a 和 b 皆為偶數
(B)若 a．b 為正數，則 a 或 b 只有一個為正數
(C) 若 n 為整數，則 n ( n＋1 ) 為偶數
(D) 若 n 為偶數，則 n2 為奇數A
(A)若 a．b 為偶數，則 a 和 b 皆為偶數
(B)若 a．b 為正數，則 a 或 b 只有一個為正數
(C) 若 n 為整數，則 n ( n＋1 ) 為偶數
(D) 若 n 為偶數，則 n2 為奇數A
參考答案
答案：C
難度：計算中-1
書單：沒有書單，新增
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