问题 单项选择题

数据流程图的绘制过程是对新系统的需求进行综合分析和形成新系统()。

A.逻辑模型

B.物理模型

C.总体方案

D.可行性报告

答案

参考答案:A

解析:数据流程图描述了企业或机构中整体的或部门的数据、数据流向、数据加工、数据存储及来源去向,从而形成系统的逻辑模型。

改错题

改错

1.My English is so limited that I have to keep on learning some expressions and use them.________________________________________________________

2.Don't be angry with me because not having replied to your letter.

______________________________________________________________

3.The difficulty faces us today is the supply of food to those in need.

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4.Much experience are needed to operate a computer well.

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5.We are now living in the room whose windows face the south.

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6.The managers discussed the plan that they would like to see it carried out the next year.________________________________________________________

7.It has been announced, we shall have our final exam this month.

____________________________________________________________

8.She thought I was talking about her daughter, which, in fact, I was talking about my daughter.______________________________________________

9.The clouds moved across the moon, left us in total darkness.

______________________________________________________________

10.They looked up and saw a notice on the wall read:"No smoking!"

_____________________________________________________________

11.They bought a new house but which will need a lot of work before they can move in.

_____________________________________________________________

12.We can learn a lot of about what a person is thinking by watching his  or her body language.________________________________________________

13.I was still so angry that I went up to tell him how I thought of him.

____________________________________________________________

14.It never occurred me to phone you.

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15.I was prevented by illness taking the exam.

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单项选择题 A型题