考博

系统的设置应考虑今后管理发展的需要 ； 子系统的划分应便于系统分阶段实现 ； 子系统的划分应考虑到各类资源的充分利用。 常用的编码有哪些形式。 顺序码，数字码，字符码，混合码 数据库设计的三大任务是什么。 数据库设计的任务： 根据一个单位的信息需求、处理需求和数据库的支撑环境（包括 DBMS、操作系统和硬件），设计出数据模式（包括外模式、逻辑（概念）模式和内模式）以及典型的应用程序。

ll this money to raise the prices of petrol and diesel oiil in addtion to the governmental funds. If all this money collected is used to improve transportation services, the situation will be

a healthy diet, I think he or she will act accordingly. As for specific actions: I suggest that blood hemoglobin(血红蛋白 )should be checked as a routine part of a youngster’s yearly physical examination

nd negative effects. What we must do is to make sure that the positive ones are encouraged and the negative ones are eliminated as far as possible. Sample 2 (Science and Human Life) Advantages:

It can send a jolt of as much as eight hundred volts of electricity through the water in which it lives. (An electric house current is only one hundred twenty volts.) As many as fourfifths of all the

world is rapidly advancing towards the Information Age, increasing number of people realize that knowledge is power and creativity is everything. Only when China bees a better educated nation, can

and services in city markets。 there are more public utilities available in big cities。 there are even much more television channels in big cities. However, living in a small town also has some

and services in city markets。 there are more public utilities available in big cities。 there are even much more television channels in big cities. However, living in a small town also has some

re many other factors that account for this problem and correspondingly there are other ways to bring families closer. Here I have only explored a few of them. With her entry into WTO, China is being

fer coffee to t Which of these two dresses do you prefer? defer vt. 推迟；延期 vt. （与 to 连用）服从；顺从 Do you always defer to your parents wishes? 13. consequent subsequent consequent adj. 作为结果的 subsequent adj