OG-28，请答疑，谢谢

noss

D，广告段增加了不一定每段中的广告说多了啊，fact2主要针对每段中的广告数说的。

所以E是对的！

asjiali

B. The total time allotted to the average cluster of consecutive television commercials is decreasing.

B应该是说平均分配到每个广告时段的总的时间在下降，而Fact2是说“人们更能记住每个广告段的开头/结束的广告”。

Fact1：广告效果差，因为人们能记住的广告比例在下降（记住的/看过的）

个人觉得B是指分配到每段的时间减少，那么广告总量就减少，这样记住的比例反而应该上升(按上面的比例)，因此与Fact1相反。

严重同意！！！

katrinaxy520

以下是引用999DSCD在2005-8-26 21:35:00的发言：

Fact1:关键字是propotion of brand names

Fact2Fist one + Last one)/Total=人们能记住的比例。

E：在一个广告段里，total越多，记住的比例越低，从而用F2解释了F1

这个ＭＭ　的意见很好！

kevin070707

以下是引用qierliu在2003-11-18 23:27:00的发言：
28. Fact 1: Television advertising is becoming less effective: the proportion of brand names promoted on
television that viewers of the advertising can recall is slowly decreasing.
Fact 2: Television viewers recall commercials aired first or last in a cluster of consecutive commercials far better
than they recall commercials aired somewhere in the middle.
Fact 2 would be most likely to contribute to an explanation of fact 1 if which of the following were also true?
A. The average television viewer currently recalls fewer than half the brand names promoted in commercials
he or she saw.
B. The total time allotted to the average cluster of consecutive television commercials is decreasing.
C. The average number of hours per day that people spend watching television is decreasing.
D. The average number of clusters of consecutive commercials per hour of television is increasing.
E. The average number of television commercials in a cluster of consecutive commercials is increasing.

答案是E，偶实在是不明白，E的意思有将一串广告按比例的分开吗？我觉得还不如D有说服性。
请指点，谢谢

Fact2 + Answer --> Fact1

Fact2 是说集中投放的广告在最开始和快结束时给人们留下映像最深。

Fact1 是说广告越来越没有效果。

基于Fact2，假设集中投放的广告越多，人们有映像的只有最开始和结束时，那么广告的效果也就越差。

D 中per hour其实没有意义。

helenzane

明白了！我当时选D是因为题目看反了，以为是支持2，反对1

ruolingyou

那B选项又如何排除呢？谢谢

adimeisi

这个题的答案我选的A，关于E，开始我的理解是：头和尾人们比较容易记住，中间的记不住。如果如E选项的表达，虽然增加了连续广告的平均数增加意味着中间的广告增加了，但是位于头和尾的广告增加的一定是中间的广告的两倍，也就是说人们还是记住的多，因为头尾的也随之增加而且便于人们记忆的。现在看啦你的解释，醍醐灌顶，哈哈，谢谢

adimeisi

B的意思重点讲的是时间分派问题，而这个是题干没有涉及的，所以不相干选项，第一眼排除的。我的浅见。