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标题: OG 46逻辑 [打印本页]

作者: rxh28 时间: 2007-10-26 11:59
标题: OG 46逻辑

46. Kale has more nutritional value than spinach. But since collard greens have more nutritional value than lettuce, if follows that kale has more nutritional value than lettuce.

Any of the following, if introduced into the argument as an additional premise, makes the argument above logically correct EXCEPT:

A. Collard greens have more nutritional value than kale

B. Spinach has more nutritional value than lettuce

C. Spinach has more nutritional value than collard greens

D. Spinach and collard greens have the same nutritional value A

E. Kale and collard greens have the same nutritional value

KEY A

我感觉这道题是比较有代表性的，但是提干看不懂，搞不清前提结论。牛人帮忙一下谢谢

作者: rxh28 时间: 2007-10-28 00:40
为什么没有人理我呢，我已经查询过了，没有这道题的讨论。请大家帮帮忙，谢谢了

作者: lukeleng 时间: 2007-10-28 08:36

就当成数学题好了

kale=K

spinach=S

Collard Greens=C

lettuce=L

已知Ｋ＞Ｓ，Ｃ＞Ｌ

下面除哪个条件外，能使Ｋ＞Ｌ成立？

kale羽衣甘蓝, 不结球甘蓝
Collard Greens,绿色的羽衣甘蓝

spinach 菠菜

lettuce 莴苣

A. Collard greens have more nutritional value than kale C>K,( 已知Ｋ＞Ｓ，Ｃ＞Ｌ),不能证明Ｋ＞Ｌ成立

B. Spinach has more nutritional value than lettuce S>L( 已知Ｋ＞Ｓ，Ｃ＞Ｌ),Ｋ＞Ｌ成立

C. Spinach has more nutritional value than collard greens S>C,( 已知Ｋ＞Ｓ，Ｃ＞Ｌ),Ｋ＞Ｌ成立

D. Spinach and collard greens have the same nutritional value
S=C,,( 已知Ｋ＞Ｓ，Ｃ＞Ｌ),Ｋ＞Ｌ成立

E. Kale and collard greens have the same nutritional value K=C,,( 已知Ｋ＞Ｓ，Ｃ＞Ｌ),Ｋ＞Ｌ成立

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