信息作为一种资源，其生命周期也可以分为需求、获取、经营管理、分配四个阶段。数据类的识别与信息的生命周期有关。其中与事务类数据有关的阶段是
A．需求、获取、经营管理
B．获取、经营管理、分配
C．需求、经营管理、分配
D．需求、获取、分配
参考答案：B
解析： 数据类是指支持企业所必要的逻辑上相关的数据。数据类可分为：存档类数据、事务类数据、计划类数据、统计类数据。信息作为一种资源，其生命周期也可以分为需求、获取、经营管理、分配四个阶段。数据类的识别与信息的生命周期有关，如下图所示。
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Good morning, boys and girl. Today I’ll give a talk about going online. We know that there are too many net bars around us. The Internet can make our lives interesting and enjoyable（令人愉快的）. Many of us like going online very much because we can learn how to use the computer. We can learn English and read some newspapers and magazines to know more around us. It can make us clever in playing computer games. Also when we can send e-mails to our friends， they can get them at once. It can help us contact（交流） people from all over the world. But some students spend too much time playing computer games and some stay in the net bars all day and all night. Some girls even get to have boyfriends or some boys get to have girlfriends online. They write too many letters to each other. It takes them too much time to chat online so they do worse in their lessons and they don’t study well any more. I think we mustn’t get online when it is time for us to study. We can do it in summer or winter holidays. I think we should get online with our teachers or parents. At the same time, if we have lots of free time, we can do some activities after school. We usually have activities from 4：50 to 5：50 in the afternoon . You can play basket ball or football. We also have some interest groups in school, such as drawing, singing and dancing. We can go to the English corner on Monday afternoon. We hope we can spend more time on our subjects or on such activities that we can learn a lot from and less time on the Internet.
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