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15、在Excel 2010的工作表中，假定C3:C6区域内保存的数值依次为2﹑6﹑8和10，则函数=AVERAGE(C3:C6)的值为______。
A.26
B.9
C.6.5
D.4.5
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  • 题型描述: 阅读理解Laptop computers are popular all over the world. People use them on trains and airplanes, in airports and hotels. These laptops connect people to their workplace. In the United States today, laptops also connect students to their class-rooms. Westlake College in Virginia will start a laptop computer program that allows students to do schoolwork anywhere they want. Within five years, each of the 1,500students at the college will receive a laptop. The laptops are part of a $10million computer program at Westlake, a 110-year-old college. The students with laptops will also have access to the Internet. In addition, they will be able to use e-mail to “speak” with their teachers, their classmates, and their families. However, the most important part of the laptop program is that students will be able to use computers without going to computer labs. They can work with it at home in a fast-food restaurant or under the trees—practically anywhere!Because of the many changes in computer technology, laptop use in higher education such as colleges and universities, is workable. As laptops become more powerful, they become more similar to desktop computers. In addition, the portable computers can connect students to not only the Internet, but also libraries and other resources. State higher-education officials are studying how laptops can help students. State officials also are testing laptop programs at other universities, too. At Westlake College, more than 60 percent of the staff use computers. The lap-tops will allow all users to use computers in their lessons. As one Westlake teacher said, “Here we are in the middle of Virginia and weˊre giving students a window on the world. They can see everything and do everything.”1、 A window on the world in the last paragraph means that students can _ _ _ _ . A. get information from around the world B. attend lectures on information technology C. have free laptops D. travel around the world 2、 The main purpose of the laptop program is to give each student a laptop to _ _ _ _ . A. use for their schoolwork B. work at home C. connect them to libraries D. access the Internet 3、 Why is the word “speak” in the second paragraph in quotation marks？ A. They use the computer language. B. They donˊt really talk. C. None of the above reasons is correct. D. Laptops have speakers. 4、 What can we infer from the passage？ A. am is too expensive. B. The program is successful. C. The program is not workable. D. We donˊt know the result yet. 5、 Which of the following is true about Westlake College？ A. All teachers use computers. B. It is an old college in America. C. 1,500students have laptops. D. Students there can do anything.统考英语A
  • 统计分组的作用是（ ）。得分： 分 系统自动批改于2020年5月17日 0点37分 统计学原理
  • 13、- What's wrong with you, dear? - _ _ _ _ _ _ _ _ _ A.I didn't go to school. B.I have a terrible headache. C.I took the kids shopping today. D.It is a beautiful dress.统考英语交际英语
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  • 5、What is the best way to learn a language? We should remember that we learned our own language well when we were children. If we could learn a second language in the same way, it would not seem so difficult. Think of what a small child does. He listens to what people say and tries to imitate what he hears. When he wants something he has to ask for it. He is using the language，talking in it，thinking in it all the time. If people had to use a second language all the time, they would learn it quickly. We learn our own language by hearing people speak it，not by seeing what they write. We imitate what we hear. In school，though you learn to read and write as well as to hear and speak，it is best to learn all the new words through the ear. You can read them，spell them and write them later.统考英语阅读理解
  • 无论是国产车还是进口车，一律采用国内现行的二手车市场内二手车的市场价作为被评估车辆的重置成本全价。 二手车鉴定与评估

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