问题 单项选择题

用来表示数据在系统中各种物理构成元素,如程序、设备和数据之间的流动状况的工具是

A.数据流程图

B.系统流程图

C.模块结构图

D.IPO图

答案

参考答案:B

解析: 数据流程图是通过外部实体、加工处理、数据存储、数据流等要素表示系统对数据的处理逻辑,是软件系统逻辑模型的描述,因此与设备是无关的。模块结构图则利用层次结构表达了软件系统的模块划分与模块之间的结构关系。IPO图则是对模块结构图中的模块属性提供进一步的信息,包括模块的输入数据、输出数据和模块的数据处理动作等。

阅读理解

阅读理解。

     Snow World Ski (滑雪) Park

     Price (价格): 50 yuan / hour on weekdays 70 yuan / hour on weekends

     pen time: 10:00 a.m.--3:00 p.m.

     Wanted 

     Can you speak English? Do you know much about Shanghai? Do you want to work for the 2010 Shanghai

World EXPO?

     Age: 18--30 Tel: 876-5163

     Found A black sports bag.

     There is a basketball and some food in it.

     Tel: 897-5897

     Movies at Times Cinema

     Crazy Stone: 8:00 a.m.--9:30 a.m.

     2012Doomsday: 8:00 a.m.--10:00 a.m.

     Avatar (阿凡达): 2:30 p.m.--5:00 p.m.

     Baby Plan: 6:00 p.m.--8:00 p.m.

     Ticket price: 25 yuan

      Tel: 860-1120

     Welcome to Sun Store on Bridge Street!

     All kinds of school things: bags, pens, rulers and pencils are cheaper (更便宜的) now.

     [Discount (打折) 40%, only this week]

 根据材料内容从所给选项中选出最佳选项.

1. If you want to pay less (更少的) money, you can go skiing _____.

A. on Friday

B. on Sunday

C. in the evening

D. on Saturday

2. If a pen cost 30 yuan in Sun Store last week, it costs _____ this week.

A. 30 yuan

B. 16 yuan

C. 18 yuan

D. 22 yuan

3. Linda wants to work for the Shanghai EXPO, so she must speak _____ well.

A. Japanese

B. French

C. Chinese

D. English

4. Mr. Brown has nothing to do from 2:00 p.m. to 6:00 p.m. Which movie can he see?

A. Avatar.

B. Crazy Stone.

C. Baby Plan.

D. 2012Doomsday

5. If you lost a black sports bag, you can call _____.

A. 876-5163

B. 860-1120

C. 896-8956

D. 897-5897

单项选择题