24、当IE浏览器中的页面中的后退按钮处于灰度状态时，说明______。A.不能进行后退操作B.可以进行后退操作C.可以进行前进操作D.可以进行删除操作 - 查题网

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高等继续教育 / 计算机统考

正确率：统考%

24、当IE浏览器中的页面中的后退按钮处于灰度状态时，说明______。
A.不能进行后退操作
B.可以进行后退操作
C.可以进行前进操作
D.可以进行删除操作

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计算机统考

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20、The Internet began more than thirty years ago, and its goal was to increase communication among universities, the government and some major American businesses by linking their computers together. The Internet makes it easy for them to send large _ _ 21 _ _ of information quickly. As time passed, more people began using the Internet. In 1981, the Internet linked 213 computers. Only nine years later, it _ _ 22 _ _ more than 350,000 computers. Today experts say there are about 300 million computers connected to the Internet. The Internet has changed the way people work. They can travel from place to place _ _ 23 _ _ getting in touch with their office all the time via the Internet. A recent report in the America magazine, Newsweek, said more than 89 million Americana now use the Internet at work. Companies around the world now use the Internet. One can hardly imagine how business could be done _ _ 24 _ _ the Internet. The Internet is becoming more important than any one had thought possible. And its importance is _ _ 25 _ _ to increase more in the future.统考英语完型填空

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