The growing popularityl 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 report 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 television regularly B. whether the amount of time spent watching television is declining among people who repot that they rarely or never use computers C. whether the type of television programs a person watches tends to change as the amount of time spent per week using computer increases D. whether a large majority of the computer owners in the survey reported spending increasing amounts of time per week using computers E. whether the survey respondents’ report of time spent using computers included time spent using computers at work.
2。The percentage of housefolds with an annual income of more than $40,000 is higher in Merton county than in any county. However, the percentage of households with an annual income of $60,000 or more is highest in Sommer county. If the statements above are true, which of the following can properly be concluded on the basis of them? A. no household in merton county has an annual income of $60,000 or more. B. Some households in merton county have an annual income between $40,000 and $60,000 C. The number of households with an annual income of more than $40,000 is greater in merton than in sommer county. D. The percentage of households with an annual income of $80,000 is higher in sommer than in merton county. E. Average annual household income is higher in sommer than in merton county. 3。For most people, the left half of the brain controls linguistic capabilities, but some people have their language centers in the right half. When a language center of the brain is damaged, for example by a stroke, lingustic capabilities are impaired in some way. Therefore, people who have suffered a serious stroke on the left side of the brain without suffering any such impairment must have their language centers in the right half. Which of the following is an assumption on which the reasoning in the argument above depends? A. no part of a person’s brain that is damaged by a stroke ever recovers. B. impairment of linguistic capabilities does not occur in people who have not suffered any damage to any language center of the brain. C. strokes tend to impair linguistic capabilities more severely than does any other cause of damage to language centers in the brain. D. if there are language centers on the left side of the brain, any serious stroke affecting that side of the brain damages at least one of them. E.it is impossible to determine which side of the brain contains a person’s language centers if the person has not suffered damage to either side of the brain.
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发表于 2003-10-20 14:45:00
