关于only 和the only的问题（2001－June－2－10）

unclekin · 发表于 2008-8-5 11:17:00

前面lawyer的逻辑总结说了only和 the only的问题。2001年6月的这道题的the only的用法似乎和example里的the only way to不相同，但理解是否也应是一样的，即the only 后面的一律是充分条件？谢谢!

题目

2001年6月第二section 第10题

Although the charter of Westside School states that the students body must include some students with special educational needs, no students with learning disabilities have yet enrolled in the school. Therefore, the school currently is in violation of its charter.

a. All students with learning disabilities have special educational needs.
b. The school currently has no students with learning disabilities.
c. The school should enroll students with special education needs.
d. The only students with special educational need are studetns with learning disabilities.
e. the school's charter cannot be modified in order to avoid its being violated.

答案是D。由于charter -> special needs -> learning disabilities, 按照contrapositive，才有的conclusion 是违反charter。答案A是 learning disabilities－>special needs，所以不对。可是D如果按照一般的only 解释，即only后面是必要条件，则也不对。是不是如果是the only后面就是充分条件？谢谢。

bibisky7 · 发表于 2008-8-5 14:29:00

不懂啊。。为什么选D

盼nn来解答

cosuede · 发表于 2008-8-5 15:06:00

题目是问什么？
assumption么？感觉这道题就是“架桥”。自然选D

stavan · 发表于 2008-8-5 15:11:00

题目不完整...如果答案为D,这个题目应该是assumption题目...

根据D选项, SN就是LD的充分条件啊...不是很清楚楼主的疑问在哪里

关于only 和the only的问题（2001－June－2－10）

关于only 和the only的问题（2001－June－2－10）

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