TT GWD-21-26

aliciafull

    

Q26:

    

For each positive integer n, the
integer n^* is defined by n^* = n²
+ 1.  What is the value of the positive
integer k ?
(my choice is C)

    

(1)     When k
is divided by 4, the remainder is 1.

    

(2)     18 ≤ k^*
≤ 36

满足1的K太多了。。。
2解出来也有两个呀，4和5，为什么不选C呢？答案是B。

aliciafull

XDJM们快来帮帮忙呀，没几天就要考了，哎

diane320

4不行啊