GMATPrep一道逻辑题

棱角优雅的冰 · 发表于 2006-2-13 13:54:00

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?

A. Few if any of the RDS radio stations that began broadcasting in Verland 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 staion 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.

我选D，答案是A，不明白为什么。

还有一题：

The more frequently employees take time to exercise during working hours each week, the fewer sick days they take. Even employees who exercise only once a week during working hours take less sick time than those who do not exercise. Therefore, if companies stated fitness programs, the absentee rate in those companies would decrease significantly.

Which of the following ,if true, most seriously weakens the argument above?

A. Employees who exercise during working hours occassionally fall asleep for short time after they exercise.

B. Employees who are frequently absent are the least likely to cooperate with or to join a fitness program.

C. Employees who exercise only once a week in their company's fitness program usually also exercise after work.

D. Employees who exercise in their company's fitness program use their working time no more productively than those who do not exercise.

E. Employees who exercise during working hours take slightly longer lunch breaks than employees who do not exercise.

我选C，为什么不对？B我同意是对的。C说之所以每星期锻炼一次都有效果，是因为那些雇员回家还锻炼，所以并不一定是锻炼项目起的作用，这就削弱了结论中说只要有锻炼项目，就能减少旷工情况。

[此贴子已经被作者于2006-2-13 14:22:38编辑过]

chachamao · 发表于 2011-8-19 16:39:30

我咋觉得上面A的解释都有问题？
A应该是新增加的radio stattion不是播送给那些之前不能收到信号的equipped RDS的用户所以新增加的radio stations没有增加接收到program的number
再者，取非的话，增加stations 并reach到之前不能接受信号的人，那么接受的用户就会增多，是与原文相反的。所以A是正确的。

D的话乍一看也对，我当时也选错了。但是如果仔细一推敲，原文中equipped RDS用户数基本不变，D中说没有equip的就out of scope了

-- by 会员 zhangjun1118 (2011/7/4 22:49:17)

楼上的说得对。我再说一些自己的看法。

A选项句子很绕，我也是读了挺多遍才读懂意思的。做了个图表示一下题中的几个factor的关系：

Verdland	Before 94'	94'-96'
RDS Station	250	600
RDS-equipped Radio	Same	Same
	GAP	GAP
RDS Listener	X	Not Increase

原题目中有一个gap,就是 radio的数量和listener的数量的问题，持有一台RDS的radio并不代表就能收听的到RDS的节目，在Verdland有些radio holders可能就因为location的问题没法收到RDS信号，就像手机在某些边远地区信号不好，甚至无法收到信号一样。A选项就填补了这个GAP, 表示94年后几乎没有（literal meaning of 'few')新增的RDS电台去RDS信号盲区广播。

wycg · 发表于 2006-2-13 16:01:00

以下是引用棱角优雅的冰在2006-2-13 13:54:00的发言：

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 Verland after 1994 broadcast to people with RDS-equipped radios living in areas not previously reached by RDS stations.

句子节构没看太懂,不知到LZ是不是抄错了.猜了.A说那个有R equip的人很少住在以前RDS站不能覆盖的地.

如果是的话,有可能这些人现再就能收到RDS的information了.