问题 单项选择题

结构化信息系统的开发方法要求各阶段的严格性、完备性和( )。

A.完整性

B.全面性

C.准确性

D.合理性

答案

参考答案:C

解析: 结构化信息系统的开发方法要求各阶段的严格性、完备性和准确性。 相关知识点: 结构化方法应遵循下列基本原则。 从调查入手,充分理解用户的业务活动和信息需求,它是系统设计的依据。 在充分调查、分析的基础上对需求和约束进行理解,对可行性进行论证,以减少盲目性。 用全局的观点对企业进行分析,以构成全企业的信息模型。 将系统开发任务划分工作阶段;强调各阶段文档资料的规范和完整;运用模块结构方式来组织系统,使系统在灵活性和可变性等方面得以充分体现。 结构化信息系统开发方法适用于那些规模适中且所有业务过程可以事先加以严格说明的系统,对规模大的、业务流程具有较大不确定性的系统有一定的困难。

单项选择题
完形填空

第二节:(共5小题;每小题2分,满分10分)

根据短文内容,从短文后的选项中选出能填入空白处的最佳选项。选项中的两项为多途选项。

76 He is often described as the man who has saved more lives than any other person in history. Norman Borlaug is considered the father of what has been called the Green Revolution. His ideas about agriculture in creased crop production and ended hunger are welcomed in many nations.77

Norman Borlaug was born ninety-four years ago on a farm in the American state of IowA.In the middle of the twentieth century, world population was expanding faster than food production.78

Norman Borlaug was an agricultural researcher at the International Maize and Wheat Improvement Center In Mexico. 79 Those methods increased the amount harvested by three times. He later repeated this success in India, Pakistan and Africa.

His methods of farming saved millions of people who would have starved to death. Norman Borlaug was given the Nobel Peace Prize for his efforts in 1970.

Mr. Borlaug is still urging experts think about the needs of people around the world .80 He says it has the power to destroy most of the wheat being grown around the world.

A. Experts said many people in developing countries would face starvation.

B. The person who is making a difference is known around the world.

C. His efforts make it impossible for people all over the world to starve any more.

D. He developed methods of growing wheat.

E. His latest concern is a disease in wheat called UG99.

F. Mr. Borlaug continues to be a leader among agricultural researchers.

G. The world’s population growth is faster than crop increase.