问题 单项选择题

DSS中的数据系统的特点之一是( )。

A.数据主要来源于系统内部

B.能快速批量地增减数据

C.数据管理能力较弱

D.缺乏直观的数据表达方式

答案

参考答案:B

解析:决策支持系统的数据子系统是一个以数据库技术应用为基础的数据库系统,其基本功能:能适应多重数据来源的数据采集系统, 它可获得各种数据并加以提取,因为用于决策过程中的数据可能来自内部,同时也可能来自外部,而内部数据也可能来自不同的部分;能提供 快速的对数据批量的增加和删除;能够按照决策者的要求,提供对数据逻辑结构的描述,使用户能够清楚地理解数据的关系和用途,以帮助决 策支持系统的使用者对所提供的数据信息有比较清楚的了解;有较强的数据管理功能;有多方面的表达能力。

单项选择题
单项选择题 案例分析题

Questions 16 to 20 are based on the following passage.

In a time of low academic achievement by children in the United States, many Americans are turning to Japan, a country of high academic achievement and economic success, for possible answers. However, the answers provided by Japanese preschools are not the ones Americans expected to find. In most Japanese preschools, surprisingly little emphasis is put on academic instruction. In one investigation, 300 Japanese and 210 American preschool teachers, child development specialists, and parents were asked about various aspects of early childhood education. Only 2 percent of the Japanese respondents (答问卷者) listed “to give children a good start academically” as one of their top three reasons for a society to have preschools. In contrast, over half the American respondents chose this as one of their top three choices. To prepare children for successful careers in first grade and beyond, Japanese schools do not teach reading, writing, and mathematics, but rather skills such as persistence, concentration, and the ability to function as a member of a group. The vast majority of young Japanese children are taught to read at home by their parents.

In the recent comparison of Japanese and American preschool education, 91 percent of Japanese respondents chose providing children with a group experience as one of their top three reasons for a society to have preschools. Sixty-two percent of the more individually oriented (强调个性发展的) Americans listed group experience as one of their top three choices. An emphasis on the importance of the group seen in Japanese early childhood education continues into elementary school education.

Like in America, there is diversity in Japanese early childhood education. Some Japanese kindergartens have specific aims, such as early musical training or potential development. In large cities, some kindergartens are attached to universities that have elementary and secondary schools. Some Japanese parents believe that if their young children attend a university-based program, it will increase the children’s chances of eventually being admitted to top-rated schools and universities. Several more progressive programs have introduced free play as a way out for the heavy intellectualizing in some Japanese kindergartens.

In Japan’s preschool education, the focus is on ()

A.preparing children academically

B.developing children’s artistic interests

C.tapping children’s potential

D.shaping children’s character