Which of the following most logically completes the argument?
The growing popularity of computer-based activities was widely predicted to result in a corresponding decline in television viewing.Recent studies have found that, in the United States, people who own computers watch, on average, significantly less television than people who do not own computers.In itself, however, this finding does very little to show that computer use tends to reduce television viewing time, since __.
A. many people who watch little or no television do not own a computer
B. even though most computer owners in the United States watch significantly less television than the national average, some computer owners watch far more television than the national average
C. computer owners in the United States predominantly belong to demographic groups that have long been known to spend less time watching television than the population as a whole does
D. many computer owners in the United States have enough leisure time that spending significant amounts of time on the computer still leaves ample time for watching television
E. many people use their computers primarily for tasks such as correspondence that can be television
B. even though most computer owners in the United States watch significantly less television than the national average, some computer owners watch far more television than the national average
some作为样本是绝对错误的，因为是少数，不能以他们的行为反对电脑的使用会减少看电视的时间
D. many computer owners in the United States have enough leisure time that spending significant amounts of time on the computer still leaves ample time for watching television
这个选项完全没有用电脑和看电视时间的相互关系，2个花费的绝对时间都很多，但可能还是存在此消彼长的关系，电脑花的时间更多些，看电视的时间就会更少作者: SMARTCATHYT 时间: 2011-10-4 06:23
