问题
单项选择题
下列关于数据分析的描述中，不正确的是()。
A．数据流图抽象于组织机构图
B．数据分析包括数据字典的编制
C．数据字典中被定义的内容一定会在数据流图中出现
D．数据流图为系统设计提供支持
答案
参考答案：A
解析：数据库系统有数据库、数据库管理系统和用户组成。其核心是数据库管理系统。
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下列关于数据分析的描述中，不正确的是()。
A．数据流图抽象于组织机构图
B．数据分析包括数据字典的编制
C．数据字典中被定义的内容一定会在数据流图中出现
D．数据流图为系统设计提供支持
参考答案：A
解析：数据库系统有数据库、数据库管理系统和用户组成。其核心是数据库管理系统。
| Choose the best topic from A to F according to the meaning of the passage. | |
| ( )1. Years ago, if a person had some problems or wanted to write something down, he／she might keep a diary. But now, more and more people go onto the Internet, and write something in a blog (博客). ( )2. In many ways, a diary and a blog are almost the same. Both diaries and blogs can tell what happened to the writer. ( )3. A blog is a public way of writing. Anyone can read what you write in it. So you'd better be careful of your writing. However, a diary is just opposite. It is personal, your secrets can be kept well. ( )4. On the Internet, I sometimes read some people's blogs. They often write about studying, working, travelling, sports and so on. From their blogs, I can find some of their thoughts, feelings, etc. ( )5. If a person isn't afraid to let others know something about himself/herself. A blog is a very good way to record (记录) everyday life. | |
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