問題詳情
21.下列敘述何者正確？
(A)任意兩個不同質數一定互質
(B)兩個連續整數的和一定是質數
(C)所有的整數不是質數就是合數
(D)每個質數加上1一定是合數
(A)任意兩個不同質數一定互質
(B)兩個連續整數的和一定是質數
(C)所有的整數不是質數就是合數
(D)每個質數加上1一定是合數
參考答案
答案：A
難度：適中0.5
統計：A(0),B(0),C(0),D(0),E(0)
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