本贴相关题目 GMATPrep-2007E2-CR-11 (BPOU)

00:00:00

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?

AFew 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.
BIn 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.
CEquipping a radio station with RDS technology does not decrease the station's listening area.
DIn 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.
EThe RDS radio stations in Verdland in 1996 did not all offer the same type of programming.

正确答案: A

请教=PREP2-11

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sunjin1988

楼主

发表于 2009-10-19 17:49:00 | 显示全部楼层

我的理解是对the special program information probably did not increase significantly.他假设了什么作者认为既然收音机数量没变所以即使增多station也不会increase significantly
他假设了如果station增多的话如果收音机也同时增多的话那么接受到的信息就一定增加，他忽略一点那就是万一station增加但是它并不会覆盖那些区域也就是说有的地方收不到信号。。。。