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标题: 求助 一道逻辑题 [打印本页]

作者: 绿水清心    时间: 2010-7-16 17:16
标题: 求助 一道逻辑题
一道逻辑题,在大全里没找到,搞半天没明白,求高人指点~~
Either Perry's faction or Tucker's faction, but not both, will win control of the government.  If Perry wins, the nation will suffer economically.  If Tucker wins, the nation will suffer militarily.
C. It is certain that the nation will suffer either economically or militarily, and also certain that it will not suffer both.
D. If the nation suffers militarily, it is possible, but not certain, that Tucker has won.

答案是D, 可是偶选的是C, C为什么不对呀
作者: sunflower82    时间: 2010-7-16 18:20
不是Perry帮派就是Tucker帮派可以取得控制政府的权利,但不是他们都可以。如果Perry盈,那么这个国家就会有经济上的一些suffer,如果Tucker赢,那么这个国家就是有军事上有suffer。我觉得D更好,C and之前是合理的,但是and后就不合理了,因为你不能确定不会同时有economically和militarily上的suffer,因为有其它原因可以导致economically和militarily上的suffer。
作者: 绿水清心    时间: 2010-7-16 18:57
谢谢楼上。。懂了




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