管理现代化包括管理思想、管理组织、管理方法和管理手段等现代化,“重视经营和重视决策”属于()
A. 管理手段现代化
B. 管理方法现代化
C. 管理组织现代化
D. 管理思想现代化
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将专用报表功能改成通用报表生成功能,使应用系统适应将来各类变化而不被淘汰,属于()
A. 正确性维护
B. 适应性维护
C. 完善性维护
D. 预防性维护
以下不属于详细调查难点的是()
A. 没有足够的用户参与
B. 用户的需求经常变更
C. 用户与开发人员很难进行交流
D. 数据库管理系统的选型
We are all busy(31) about and using the Internet, but how many of us know the history of the Internet?Many people are(32) 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(33) to be used by many different computers. If part of the network was not working, information could be sent through(34) part. In this way computer network system would (35) on working all the time. (36) the Internet was only used by the government, but in the early 1970s, universities, hospitals and banks were allowed (37) 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(软件)(38) made "surfing" the Internet more convenient.Today it is (39) to get on-line and it is said that millions of people use the Internet every day. Sending e-mail is more and more popular (40) students. The Internet has now become one of the most important parts of people's life. 35()
A. keep
B. go
C. move
D. get