作者foxowlcat (barbara )
看板GMAT
标题[计量]pp2-ds-57
时间Sat Nov 29 13:54:18 2008
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.
答案:C
想问一下(2)怎麽和(1)合并呢? 觉得很怪
(2)是说共有偶数个整数 那为什麽就可以和(1)合并 得到答案，非常不能理解
麻烦各位了谢谢
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