大脑不够用..两道逻辑题求助!!!

andrew4372125

It has long been thought that high levels of the hormone testosterone contribute to the onset of heart disease in men．However, this view cannot be correct, since men who have heart disease typically show significantly lower levels of testosterone than do men who have not had heart disease．
The argument above assumes which of the following？
(A)Many men who have never had heart disease have unusually low levels of testosterone．
(B)Having heart disease does not significantly lower the level of testosterone in men．
(C)Levels of hormones other than testosterone significantly affect the likelihood that a man will develop heart disease．
(D)Heart disease and lowered testosterone levels in men are the effects of a single common cause．
(E)High levels of testosterone have never been thought to contribute to a serious disease other than heart disease

Census data for Prenland show that unmarried Prenlandic men in their thirties outnumber unmarried Prenlandic women in that age group by about ten to One. Most of these men do wish to marry. Clearly，however， unless many of them marry women who are not Prenlandic， all but a minority will remain unmarried.
The argument makes which of the following assump-tions?
(A) Emigration from Preland is more common among women than among men.
(B) A greater proportion of Prelandic women in their thirties than of Prenlandic men of the same age would prefer to remain unmarried.
(C) It is unlikely that many of these unmarried Prenlandic men will marry women more than a few years older than themselves.
(D) Prenland has a high rate of divorce.
(E) Most of the unmarried Prenlandic men are unwilling to marry women who are not Prenlandic.


第一题选B 第二题选C

实在是想不通...求助!!

啊哈哈哈哈

第一题是说原来一直认为hormone testosterone的level高会造成心脏病发病。又说因为有心脏病的人hormone testosterone的level比没心脏病的人低，所以前面的结论是错的。
但原来的观点说的是心脏病的发病原因，后面的观点是说心脏病病人的一个特征。两者应该是没有因果关系的。
心脏病人hormone testosterone高的有可能是发病后，心脏病本身会减少这个东西。假设这个可能不存在的话（也就是选项B），才能推出后面的结论。

第二题是说这个地方的30岁的男女比例是10比1，然后得出的结论是除非这些男的跟不是这个地方的女人结婚，不然大部分男的都只能单着。
这个很好理解啊，只说了30岁的男女比例，有可能非30岁的女的有很多呢。所以这些男的完全可以和非30岁的女人结婚啊。
但是假设这些男的不会跟30岁以上的女的结婚（就是选项C），就可能会变成结论说的，大部分remain unmarried了。

不知道这样说能理解么？

andrew4372125

啊哈哈哈哈 发表于 2013-5-17 16:01
第一题是说原来一直认为hormone testosterone的level高会造成心脏病发病。又说因为有心脏病的人hormone tes ...

额..你说的,我大概能理解一些...
我完全不懂逻辑题的考法,问题中所提到的argument一般是指类似clearly,或者therefore之后的部分吗? 完全小白...

竹林中人

andrew4372125 发表于 2013-5-17 16:22
额..你说的,我大概能理解一些...
我完全不懂逻辑题的考法,问题中所提到的argument一般是指类似clearly, ...

argument就是观点结论的意思

YESL

确实有些费解, 阿哈哈哈 解释后,好理解多了.