问题 单项选择题

在瀑布模型基础上,对一些阶段进行整体开发,对另一些阶段进行增量开发,则该开发模型是______。

A.增量构造模型

B.演化提交模型

C.原型模型

D.螺旋模型

答案

参考答案:A

解析:增量模型是在项目的开发过程中以一系列的增量方式开发系统。增量方式包括增量开发和增量提交。增量开发是指在项目开发周期内,以一定的时间间隔开发部分工作软件。增量提交是指在项目开发周期内,以一定时间间隔增量方式向用户提交工作软件及其相应文档。根据增量的方式和形式的不同,分为渐增模型和原型模型。
渐增模型是瀑布模型的变种,有两类渐增模型:增量构造模型(在瀑布模型基础上,对一些阶段进行整体开发,对另一些阶段进行增量开发)、演化提交模型(在瀑布模型的基础上,所有阶段都进行增量开发)。

阅读理解

阅读理解。

    Online Voting -The Most Beautiful Places in China

    What are the most beautiful places in China in your eyes? Please take part in our activity and vote

online. We are looking forward to your choice and voice!

    Everyone is welcome!

     Rules:

    1) Voting period: October 1 to November 30.

    2) The results and the winners list will be released in December.

    3) 10 votes are allowed.

    4) Please leave your contact information when sending your votes. CRIENGLISH takes no

responsibility if a winner fails to receive the award because of incorrect contact information.

    5) Your comments will be important in choosing the winners.

    6) CRIENGLISH reserves the right to decide the final winners.

    7) CRIENGLISH reserves the right for final explanation of the rules.

     Awards:

    The three top winners will each receive an award worth 300 yuan (about 48 US dollars);

    The five second place winners will each receive an award worth 200 yuan (about 32 US dollars);

    The ten third place winners will each receive an award worth 100 yuan (about 16 US dollars).

1. You need to leave your contact information when sending your votes so that ______.

A. CRIENGLISH can post it online

B. everybody online can contact you

C. CRIENGLISH can reach you if you win a prize

D. CRIENGLISH can use it for some other purposes

2. How many winners will be chosen in this activity?

A. 8.       

B. 10.        

C. 15.            

D. 18.

3. What can be learned about the rules?

A. The activity lasts three months.

B. Everyone must provide 10 votes at least.

C. Only the one giving his information can join the activity.

D. You'd better give a comment in order to win.

4. The text invites people to ______.

A. travel around the ten most beautiful places in China

B. choose the ten most beautiful places in China

C. write an article about the ten most beautiful places in China

D. send some photos about the ten most beautiful places in China

5. Who probably wrote the passage?

A. A Travel Research Agency        

B. A Medical Center

C. An Animal Reservation          

D. A Souvenir shopping m

单项选择题