请教prep的一道ds2题 57

weirui5621

57.4761-!-item-!-187;#058&003968



A certain list consists of several different integers.Is the product of all the integers in the list positive?



(1)The product of the greatest and smallest of the integers in the list is positive.



(2)There is an even number of integers in the list.

这题到底是什么意思呢，不明白，感觉只有有零才能成立的结论啊

weirui5621

晕啊 居然看错题目啦 把后面那个positive看漏了

感谢楼上同学，完全明白