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题库 / Prep2007E2-CR-11
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?
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.
In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.
Equipping a radio station with RDS technology does not decrease the station's listening area.
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.
The RDS radio stations in Verdland in 1996 did not all offer the same type of programming.
题目： 电台数量从250到了600，但是收音机数量基本没变，所以收看电台节目的人数也没有显著增多。
很有可能就是新电台的覆盖范围还是老区域，而老区域里头的这些人本来就有收音机了，所以收音机的数量没有增加，于是收看电台节目的人数也没怎么增多。
B 1996年的情况，无关
C 接受区域没减少，但是可以是不变，可以是增加，增加了的话，就没办法支持题目论点了。
D 1996年没有收音机的人收不到1994年以来开始播节目的电台的任何节目。那的确是收不到的。1996年的情况，无关
E 1996年的情况，无关
A not if any：有也没有多少，几乎没有
1994年后开播的电台，它们的信号覆盖到了以前没有被覆盖到的区域的人，这样的电台几乎没有。也即是说1994年后开播的电台的信号，还是只覆盖到了以前就被覆盖到的区域。
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