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Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive. Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600. However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.

Which of the following is an assumption on which the argument depends?

正确答案: A

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[求助]Prep破解版第2套第3题

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楼主
发表于 2008-5-4 03:47:00 | 只看该作者

[求助]Prep破解版第2套第3题

 

Q3.  p2-cr       11.   (24915-!-item-!-188;#058&001837)

 

Radio stations with radio data system (RDS) technology broadcast special program information that only radios with an RDS feature can receive.  Between 1994 and 1996, the number of RDS radio stations in Verdland increased from 250 to 600.  However, since the number of RDS-equipped radios in Verdland was about the same in 1996 as in 1994, the number of Verdlanders receiving the special program information probably did not increase significantly.

 

Which of the following is an assumption on which the argument depends?

 

(A) Few if any of the RDS radio stations that began broadcasting in Verdland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.

(B) In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.

(C) Equipping a radio station with RDS technology does not decrease the station's listening area.

(D) In 1996 Verdlanders who did not own radios equipped to receive RDS could not receive any programming from the RDS radio stations that began broadcasting in Verdland after 1994.

(E) The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.

沙发
发表于 2008-5-5 15:29:00 | 只看该作者

 A。
第一,假设题是可以用无关词排除法的。B\C\E存在着比较明显的无关词。B,有Radio的数目是确定的,这跟多数人没有拥有radio没有关系,因为题目关心的不是radio具体分布在谁的手中。C,“listening area”是个无关词,只要能接受到,管你听不听呢,而且题目一直强调的是接受得到的节目的数量。E,"THE SAME TYPE OF PROGRAMMING"是和题干没有关系的。
第二,关键的在A和D的选择。可以用取非削弱的方法。A选项本来的意思是“很少有1994年以后才播送节目的stations向以前的RDS Station无法覆盖的地区的人们播送节目”,取非之后就是说“很多电台在1994年以后向以前的Station无法覆盖的地区播送节目”,那么按照题干中的条件,1994年以后station数目增加了,它增加了station的覆盖面,原来一样多数目的radio可以接受到更多的节目了,削弱了题干中的结论。所以取非削弱成立,答案就是A.
  再来看D,取非之后是“1996年没有RDS radio的人们也可以接受到1994年后播放的RDS station的节目”,这当然就说明Verdland人受到节目也有很大变化啊,也削弱了啊....乍一看,似乎D也削弱了,是不是?可再仔细看看,题干在一开始就说明了RDS的专门节目只有RDS收音机可以收到。那么没有RDS收音机的人收到了1994年后的节目是不是special program呢?显然不是。那么它就不能影响special programm接受的数量了。削弱不成立,所以D只是混淆的选择项。

呵呵,个人理解,我考完G已经快半年了,不是很在行了啊。错误之处还请海涵。

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