GWD二道.谢谢~

18.The growing popularity of computer-based activities was widely expected to result in a decline in television viewing,since it had been assumed that people lack sufficient free time to maintain current television-viewing levels while spending increasing amounts of free time on the computer.That assumption,however,is evidently false:in a recent mail survey concerning media use,a very large majority of respondents who report increasing time spent per week using computers reports no charge in time spent watching television.

Which of the following would it be most useful to determine in order to evaluate the argument?

A.Whether a large majority of the survey respondents reported watching tv regularly.

E,Whether the survey respondents' reports of time spent using computers included time spent using computers at work.

为什么答案是E内?我连E的字面意思也看不懂...

33.Which of the following,if true,most logically completes the passage?

A recent poll found that over 80 percent of the residents of nalmed province favored a massive expansion of the commuter rail system as a means of significantly easing congestion on the province's highways and were willing to help pay for the expansion through an increase in their taxes.Nevertheless,the poll results indicate that expansion of the rail system,if successfully completed,would be unlikely to achieve its goal of easing congestion,because________________

A.most people in favor of expanding the rail system reported less congestion during their highway commute as the primary benefit they would experience.

D.expanding the commuyter rail system will require the construction of dozens of miles of new railbed.

答案为什么是A呢?我完全没有头绪...觉得完全没关系啊....

请G友们指点!