对于AutoCAD,用户坐标系与世界坐标系的不同点，下面阐述正确的是：( ) - 查题网

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成人高等教育 / 实用电子工程制图

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对于AutoCAD,用户坐标系与世界坐标系的不同点，下面阐述正确的是：( )

A、
用户坐标系与世界坐标系两者是固定的
B、
用户坐标系固定，世界坐标系不固定
C、
用户坐标系不固定，世界坐标系固定
D、
两者都不固定

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实用电子工程制图

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高等数学

胃网膜右动脉通常起自: 系统解剖学

双端口存储器之所以能进行高速读/写，是因为采用_______。A、高速芯片B、新型器件C、两套相互独立的读写电路D、流水线技术计算机组成原理

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、 The main purpose of the laptop program is to give each student a laptop to _ _ _ _ . A. use for their schoolwork B. access the Internet C. connect them to libraries D. work at home 2、 Why is the word “speak” in the second paragraph in quotation marks？ A. None of the above reasons is correct. B. They donˊt really talk. C. They use the computer language. D. Laptops have speakers. 3、 Which of the following is true about Westlake College？ A. Students there can do anything. B. All teachers use computers. C. It is an old college in America. D. 1,500students have laptops. 4、 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 5、 What can we infer from the passage？ A. am is too expensive. B. We donˊt know the result yet. C. The program is successful. D. The program is not workable.统考英语B

(单选题) I turned back after a while, but he _ _ _ _ _ _ _ _ _ _ _ _ walking. A、kept onB、kept fromC、kept withD、kept to英语（一）

document.write($wapper.api.getDisplayFormat("(A)m/2(B)m(C)(D)4m[参考答案：C] 分值：2"));(A)m/2(B)m(C)(D)4m[参考答案：C] 分值：2showAnswer("lemonysoft_item_t14vobapje_58","C","3");得分：分系统自动批改于2020年12月27日 0点45分 (A)m/2(B)m(C)(D)4m[参考答案：C] 分值：2高等数学