If p is a positive odd integer, what is the remainder when p is divided by 4 ?
(1) When p is divided by 8, the remainder is 5.
(2) p is the sum of the squares of two positive integers.
答案是D
第二個選項當中的TWO POSITIVE INTEGERS 的中文意思是只說兩個正整數
可是不重複 還是是兩個正整數也許重複也許不重複
若兩個正整數不重複的話 就可以得到答案D
但若兩個正整數重複 答案B就不充分啦