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用helr的方法分析感觉超级好的一道题目答案居然跟我分析出来的不一样 颇受打击求拯救

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发表于 2014-10-18 14:00:55 | 只看该作者 回帖奖励 |倒序浏览 |阅读模式
The interstitial nucleus, a subregion of the brain’s hypothalamus, is typically smaller for male cats than for female cats. A neurobiologist performed autopsies on male cats who died from disease X, a disease affecting no more than 0.5 percent of male cats, and found that these male cats had interstitial nuclei that were as large as those generally found in female cats. Thus, the size of the interstitial nucleus determines whether or not male cats can contract disease X.
Which one of the following statements, if true, most seriously weakens the argument?
A. No female cats have been known to contract disease X, which is a subtype of disease Y.
B. Many male cats that contract disease X also contract disease Z, the cause of which is unknown.
C. the interstitial nuclei of female cats who contact disease X are larger than those of female cats who do not contract disease X.
D. Of 1,000 autopsies on male cats that did not contract disease X, 5 revealed interstitial nuclei larger than those of the average male cat.
E. The hypothalamus is known not to be causally linked to disease Y, and disease X is a subtype of disease Y.

我用相关因果的方法分析了这道题目,如下:
前提:雄猫in大,雄猫得病
结论:in大——>雄猫患病
CQ1 相关性不存在:存在In大但是不患病的情况,选项D:1000只没有患病的雄猫里面有5只In大的。我认为这正好是CQ3的削弱。但是答案是E,E有毛关系啊
求拯救!!!!

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