AMC 8 1986 Problem 17
AMC8 1986 年第 17 题
奇偶性★★★☆☆
Let be an odd whole number and let be any whole number. Which of the following statements about the whole number is always true?
设 为一个奇整数， 为任意整数。关于整数 ，以下哪条陈述一定成立？
- A.}\ \text{it is always odd} \qquad \text{(B)}\ \text{it is always even}$ $\text{(C)}\ \text{it is even only if } n \text{ is even} \qquad \text{(D)}\ \text{it is odd only if } n \text{ is odd}$ $\text{(E)}\ \text{it is odd only if } n \text{ is even}$
正确答案 · Correct Answer
E
解析 · Solution
解析整理中
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