单项选择题

A new poll shows that people believe that computers and the Internet have made life better for Americans, but people also see some dangers in the trend toward computerization.
The poll found that the public favors some government protection from cyber-problems (网络问题), but in general people are not especially concerned about issues such as information overload or the never-ending flow of phone calls, faxes and e-mails. A separate survey of children aged 10-17 shows that they have a more positive attitude about computers than adults do, and most have made use of up-to-dale technology in their schools.
The survey found that enthusiasm for computers and the Internet is found in all income groups, all regions of the country, all races, and most age groups. However, people over 60 and those towards the lower end of the income rank tend to show lower rates of computer ownership and Internet usage. The survey shows that "some kind of gap has been crossed: Computers are part of everyday life for most Americans, and the Internet is close behind.\

The first paragraph shows that（）.

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