问题 单项选择题

允许记录中出现重复值,且在索引中也保存每个重复值的索引是( )。

A.列表框和组合框都可以设置成多重选择

B.列表框和组合框都不可以设置成多重选择

C.列表框可以设置多重选择,而组合框不可以

D.组合框可以设置多重选择,而列表框不可以

答案

参考答案:C

解析:在表单控件中,组合框与列表框类似,但对于组合框来说,通常只有一个条目是可见的,且不具备多重选定的功能。

阅读理解

阅读理解。

     The pound new Library of Birmingham (LoB) will be the most visible sign of the way the city is accepting

the digitalization (数字化) of everyday life.

     Set to open in 2013, the £188m LoB is already beginning to take shape next to the Birmingham Repertory

Theatre, with which it will share some equipment.

     As digital media (媒介) is important to its idea. The project is already providing chances for some of the

many small new local companies working at the new technologies.

     Brian Gambles, the LoB project director, says it is about giving people the right tools for learning, "The aim

is to mix the physical with the digital. Providing 24-hour services which can be used through, many different

ways. It is important to enable us to reach more people, more effectively."

     The digital library will, he says, be as important as the physical one, allowing the distant use of the services,

making sure that it is never closed to the public.

     Even before the LoB is complete, the public has been able to go online to visit the Virtual (虚拟的) LoB,

designed by Baden, the Birmingham virtual worlds specialists. Not only have the public been able to learn about

LoB, but the virtual one has also enabled those working on the LoB to understand the building and how it will

work before it even opens.

     Two other small Birmingham-based digital companies are working on the LoB projects. Substrat, a digital

design company, is developing what it calls an example of an "enlarged reality" project. It is about the use of

an exciting smart phone, an important part of which are the early stages of development is an online library of

figures of the city being built up by a content company in Cahoots, in which users with the encouraged to add

to and comment on the material.

     Gambles says:"Technology will enable us to make the libraries and services open to citizens as ever before."

1. The underline part"its idea" in Paragraph 3 refers to the idea of _____.

A. the equipment

B. the project

C. the digital media

D. the physical library

2. While visiting the Virtual LoB, the public can _____.

A. get a general idea of the LoB

B. meet more world-famous experts

C. learn how to put up a library building

D. understand how the specialists work on the project

3. Which of the following is true of the LoB when it opens?

    a. It offers better learning tools

    b. It reaches users in different ways

    c. It provides users with smart phone

    d. It allows users to enrich its material

    e. It gives non-stop physical and digital services

A. a, b, d

B. a, c, e

C. b, c, d

D. b, d, e

4. This ext more from _____.

A. a put book

B. a library guide

C. a handbook

D. newspaper report

单项选择题