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LSAT-17-4-21

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楼主
发表于 2005-1-8 03:44:00 | 只看该作者

LSAT-17-4-21

21.   A society in which there are many crimes, such as thefts and murders, should not be called “lawless.” That is an abuse of the meaning of words. As a suffix, “-less” means “without,” so “lawless” means “without laws.” However, a society that has no laws has no crimes, because no laws can be broken. A lawless society would, therefore, be a crimeless society. So what some have termed a lawless society should actually be called “crimeful.”


If the statements in the passage are true, which one of the following must also be true?


(A) A society that has laws has crimes.


(B) A society that has no crimes has no laws.


(C) A society that has many laws has many crimes.


(D) A society that has some crimes has some laws.D


(E) A society that has many crimes has many laws.


请问这题是怎样推理的, 如果选D,那么E呢, some 与many 有何区别?

沙发
发表于 2005-1-8 13:03:00 | 只看该作者

if you can pick up D and E from other keys, then, you have already known the difference between sufficent condition and necessary condition.

the nuance between D and E is that the latter is out of scope.

a society that has crimes must at least have some laws, but many crimes dont necessarily guarantee many laws.

so, compared with E, D is better.

板凳
 楼主| 发表于 2005-1-8 22:53:00 | 只看该作者

我怎么看不到给我回复的贴子呢, 怪了

地板
发表于 2005-1-8 22:56:00 | 只看该作者
really ? !
5#
发表于 2005-1-8 22:58:00 | 只看该作者
post it again

if you can pick up D and E from other keys, then, you have already known the difference between sufficent condition and necessary condition.

the nuance between D and E is that the latter is out of scope.

a society that has crimes must at least have some laws, but many crimes dont necessarily guarantee many laws.

so, compared with E, D is better.

6#
 楼主| 发表于 2005-1-8 23:06:00 | 只看该作者

噢,看到了, 另外我想是不是这样选出来的.原文:  

a society that has no laws has no crimes 的逆否命题: a society that has crimes has laws. 但是我仍不明白为何选项some, 不选many,  是不是因为some是一些,而many 是多数的意思

7#
发表于 2005-1-8 23:28:00 | 只看该作者

no law , no crime=> law is necessary condition for crime.

so, this is not complied by A, C ( sufficient condition) and B ( -b cannot to -a under necessary condition)

some => at least there are some laws. (neccesary)

but, many => a lot of codes of law . ( possible but not must ) so it is worse than some.

8#
发表于 2005-1-8 23:38:00 | 只看该作者

put it another way, if a city has 1000 cases of robbery anually, we cannot say that there are 1000 codes of law in that city, right ? there is just one code of law, robbery.


[此贴子已经被作者于2005-1-8 23:40:21编辑过]
9#
 楼主| 发表于 2005-1-9 00:52:00 | 只看该作者
he.he, he, i know , thanks .............
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