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【简答题】
We are all busy taking about and using the Internet. But how many of us know the history of the Internet? Many people are surprised when they find that the Internet was set up in the 1960s. At that time, computers were large and expensive. Computer networks didn’t work well. If one computer in the network broke down, then the whole network stopped. So a new network system had to be set up. It should be good enough to be used by many different computers. If part of the network was not working, information could be sent through another part. In this way, computer network system would keep on working all the time. At first the Internet was only used by the government (政府). But in the early 1970s, universities, hospitals and banks were allowed to use it, too. However, computers were still very expensive and the Internet was difficult to use. By the start of the 1990s, computers became cheaper and easier to use. Scientists had also developed software that made “surfing” the Internet more convenient. Today it is easy to get on-line and it is said millions of people use the Internet every day. Sending e-mails is more and more popular among students. The Internet has now become one of the most important parts of people’s life. 小题1:The Internet has a history of more than _________ years. A.fifty B.ten C.forty D.twenty 小题2:A new network system was set up to_______. A.make computers cheaper B.make itself keep on working all the time C.break down the whole networks D.make computers large and expensive 小题3: At first the Internet was only used by __________. A.the government B.universities C.hospital and banks D.schools 小题4: ________ made “surfing” the Internet more convenient. A.Computers B.Scientists C.Software D.Information 小题5: Which of the following sentences is true? A.In the 1960s, computer networks worked well B.In the early 1970s, the Internet was easy to use. C.Sending e-mails is more popular among students than before. D.Today it is still not easy to get on-line.
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举一反三
【简答题】列表都可以存放什么内容?
【简答题】已知抛物线的顶点在原点,它的准线过双曲线 的一个焦点,并与双曲线的实轴垂直,已知抛物线与双曲线的交点为 . (1)求抛物线的方程; (2)求双曲线的方程.
【简答题】抛物线的顶点在原点,它的准线过双曲线 的一个焦点,且与双曲线实轴垂直,已知抛物线与双曲线的交点为 (1)求抛物线的焦点坐标; (2)求双曲线的方程.
【判断题】双曲线的顶点,焦点在实轴上
A.
正确
B.
错误
【简答题】分支移动(branch migration)
【简答题】生殖洄游(breeding migration)
【单选题】三个代表重要思想的本质是:
A.
解放思想,实事求是
B.
立党为公,执政为民
C.
以人为本,科学发展
D.
统筹兼顾,利在千秋
【简答题】重要思想的本质是:____;地位是:____。
【简答题】过双曲线的右焦点F作实轴所在直线的垂线,交双曲线于A,B两点,设双曲线的左顶点为M,若点M在以AB为直径的圆的内部,则此双曲线的离心率e的取值范围为____.
【简答题】RB 公司是一家皮鞋制造企业,拥有近400名员工。针对公司生产线频频出现质量事故,质量检查员疏忽大意、管理部门质量意识淡薄等一系列问题,公司领导决定举办专门的质量管理培训课程来解决这些问题。 质量管理的培训课程被安排在每周五晚上7:00-9:00时进行,为期10周。员工可以自愿听课,公司不给员工支额外的工资。但是公司主管表示,如果员工能积极地参加培训,那么其培训的考核结果将记入个人档案,作为公司以...
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