pre test 3 一个逻辑题求高手解答思路！！！

夏子之酒 · 发表于 2011-11-22 10:28:57

Q14. p2-cr 27. (30565-!-item-!-188;#058&005567)

Among people who experience migraine headaches,some experience what doctors call "common" migraines, whereas othersexperience "classical" migraines. Siblings and spouses of common migraine sufferers are themselves twice as likely as the general populationto experience common migraines. Siblingsof classical migrainesufferers are four times more likely than the general population toexperience classical migraines, whereas spouses of classical migraine sufferersare no more likely than the general population to experience such headaches.

The information above provides the most supportfor which of the following hypotheses?

(A) Susceptibility to classical migraines is moredependent on hereditary factors than is susceptibility to common migraines.
(B) Unmarried adults are more likely to sufferfrom classical migraines than they are to suffer from common migraines.
(C) People who do not experience migraineheadaches are unlikely to have spouses who are migraine headache sufferers.
(D) Children of people who suffer from commonmigraines are not more likely than the general population to experience acommon migraine.
(E) Between one-quarter and one-half of thegeneral population suffer from either common or classical migraine headaches.

sdcar2010 · 发表于 2011-11-22 12:08:16

AAAAAAAAAA

Focus on Siblings and Spouse.

hartmann · 发表于 2011-11-22 12:16:21

A.

题目结构应该是这样的：

病分两类，common 和 classical
common病人的家属：后代和配偶患common类病的几率，均是正常人两倍
classcial病人的家属：后代患classical病的几率是常人四倍，而配偶的几率与常人无异

潜在结论：classcial 病更易发于后代

因此，可推断出，classcial病更有可能是通过遗传来传播的。

B：涉及unmarried adult，题中未提及
C：涉及未感染病的人群，题中未提及
D：与题目premises相反
E：涉及比例，题中未提及

夏子之酒 · 发表于 2011-11-22 12:22:12

太感谢hartman了。。。逻辑思维有障碍阿痛苦阿

sdcar2010 · 发表于 2011-11-22 20:27:40

siblings are brothers and sisters, not children or offspring . . .

pre test 3 一个逻辑题求高手解答思路！！！

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pre test 3 一个逻辑题求高手解答思路 ！！！

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pre test 3 一个逻辑题求高手解答思路！！！