试题三(共15分)阅读下列说明，回答问题1至问题4，将解答填入答题纸的对应栏内。[说明]从系统论的角度看，家庭、单位、社会都是系统，系统是普遍存在的。系统论创始人贝塔朗菲认为：“系统是相互联系相互作用的诸元素的综合体”。也就是说，系统是由相互作用和相互依赖的若干部分组成的具有特定功能的有机整体。大到宇宙、地球，小到国家、个人都是系统。什么是信息系统戈登，戴维斯从社会观和技术观方面给信息系统下了定义，他认为信息系统是系统的一种，它是“用以收集、处理、存储、分发信息的相互关联的组件的集合，其作用在于支持组织(企业、政府、科研单位等)的决策与控制。”信息系统的出现，对企业的生产过程、管理过程、决策过程都产生了重大影响。尤其是促进了企业组织结构的重大变革，使企业的组织结构更加扁平化、更加灵活和有效，可以实现企业的虚拟办公、增加企业流程重组的成功率，提高企业的管理效率、降低企业的管理成本等。

[问题4](5分)信息系统的应用对企业组织结构的影响主要有哪些方面

"Sesame Street" has been called "the longest street in the world". That is because the television program by that name can now be seen in so many parts of the world. That program became one of American’s exports soon after it went on the air in New York in 1969.
In the United States more than six million children watch the program regularly. The viewers include more than half the nation’s pre-school children, from every kind of economic, racial, and geographical group.
Although some educators object to certain elements in the program, parents praise it highly. Many teachers also consider it a great help, though some teachers find that problems arise when first graders who have learned from "Sesame Street" are in the same class with children who have not watched the program.
Tests have shown that children from all racial, geographical, and economic backgrounds have benefited from watching it. Those who watch it five times a week learn more than occasional viewers. In the US the program is shown at different hours during the week in order to increase the number of children who can watch it regularly.
The programs all use songs, stories, jokes, and pictures to give children a basic understanding of numbers, letters and human relationships. But there are some differences. For example, the Spanish program, produced in Mexico City, devotes more time to teaching whole words than to teaching separate letters.
Why has "Sesame Street" been so much more successful than other children’s shows Many reasons have been suggested. People mention the educational theories of its creators, the support by the government and private businesses, and the skillful use of a variety of TV tricks. Perhaps an equally important reason is that mothers watch it along with their children. This is partly because famous adult stars often appear on it. But the best reason for the success of the program may be that it makes every child watching feel able to learn. The child finds himself learning, and he wants to learn more.

"Sesame Street" is actually ______.

A. a street in the US

B. a program for children
C. a program for teachers

D. a program for students