400-600-1123
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答案：
A
题目：求
条件1:n=(k+1)^3 【我不确定你这里是三次方还是括号乘以3,不过我估计是三次方】
条件2:k=5
既然你说答案是A了,即条件1单独成立,那么这里就直接看条件2好了.
条件2即是当仅知道k=5的时候,不知道n的具体数值时,余数无法确定.
回头看条件1,当n=(k+1)^3,结合题目已知条件k>1,用最简单的代入法,可知:
k=2时,n=(2+1)^3=27,此时余数为27/2=13+1; k=3时,n=(3+1)^3=64,此时余数为64/3=21+1.
我这里就不列举了.仅仅列举两个便可发现此时余数无论如何都是固定的,为1.
因此当条件1单独成立时,此题选A.
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