Millions of books and an Internet-based campus network are available for the Uni

游客2023-12-24  22

问题 Millions of books and an Internet-based campus network are available for the University staff and students. [br]  
To support research and scholarship, the University has a library of two million books. A high-speed campus network connects thousands of inter-working computers and servers used by staff and students with each other and with the Internet.
About 200 years ago, about 95 percent of Americans lived on farms. There were only 24 urban areas, all of which were under 100,000 people. By mid-20th century, things had changed dramatically: 70 percent of the American public lived in urban areas. From 5 percent to 70 percent! There were over 6,000 cities or urban areas.

选项

答案 B

解析 注意有关信息的收集,并根据数字进行简单判断。
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