天山5套-36题 涉及到一个问题：0是不是偶数？？

wednessday

Q36:
What is the sum of a certain pair of consecutive odd integers?
(1)   At least one of the integers is negative.
(2)   At least one of the integers is positive.

答案给的是C

有几点不明白：a ceretain pair是两个数么？还是指一组数

如果是两个数，那除非0不是偶数才可能选C,但是新东方的狒狒课堂笔记上明确地说明了0是偶数但不是合数