求解答

vincent815 · 发表于 2010-4-18 14:50:30

Either Perry's faction nor Tucker's faction ,but not both,will win control of the goverment. If Perry's faction wins ,the nation will suffer economically.If Tucker's faction wins ,the nation will suffer militarily.
which one would be true?
A It is possible,but not certain,that the nation will neither suffer economically nor suffer militarily
B If the nation suffers economically ,it is certain that Perry's faction has won control of the government
C It is certain that the nation will suffer either economically or militarili,and also certain that it will not suffer both
D If the nation suffers militarily ,it is possible, but not certain,that Tucker's faction has won control of the government
E If the nation suffers both economically and militarily ,it is certain that neither Perry's faction or Tucker's faction has won control of the government

vincent815 · 发表于 2010-4-18 19:00:03

没人么？答案是D,会的教下

Souref · 发表于 2010-4-19 00:38:36

搞清楚任何一个fraction执政是人民以对应形式suffer的充分条件就够了，然后好好想想充分条件的定义，就解出来了

ellie78 · 发表于 2010-4-19 08:53:29

我怎么觉得应该选C...

Souref · 发表于 2010-4-19 12:03:25

both也是有可能的

medusasally · 发表于 2010-4-20 14:05:08

我觉得Perry's faction wins ,the nation will suffer economically,但有可能同时suffer militarily. 对于Turry也一样，也有可能suffer militarily.

求解答

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