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. 带有RDS系统的电台才能广播特别节目。在1994-1996间,电台增加了,“然而”,带RDS的收音机数量没变,“所以”收听特别节目的听众没“明显”增加 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. 前提是:这些新开的广播站不是开在那些 以前有RDS的收音机,却收不到信号 的地区
取非:是开在这些地区 那么听特殊频道的人增加了 但他们不用买RDS收音机 因为他们以前就有
(B) In 1996 most Verdlanders who lived within the listening area of an RDS station already had a radio equipped to receive RDS.weaken |