问题 单项选择题 A1型题

为使戴用全口义齿后上唇有较理想的丰满度,排牙时应做到的内容不包括()

A.上尖牙唇面距腭皱侧面约10.5mm

B.老年患者上尖牙顶连线与切牙乳突后缘平齐

C.老年患者上前牙切缘在上唇下露出1~1.5mm

D.排成浅覆牙合、浅覆盖

E.上前牙唇面距切牙乳突中点8~10mm

答案

参考答案:D

解析:上前牙唇面至切牙乳突中点一般8~10mm。年轻人上尖牙顶连线通过切牙乳突中点,而老年人上尖牙顶连线与切牙乳突后缘平齐。上尖牙的唇面通常与腭皱的侧面相距10.5±1mm。上前牙切缘在唇下露出2mm,年老者露的较少。

阅读理解

阅读理解

     The multimillion 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 24hour 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 the 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 Birminghambased digital companies are also 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 the LoB which is in the early stages of

development.And The People's Archive is an online library of historical figures of the city being built up

by a digital content company in Cahoots, in which users will be encouraged to add to and comment on

the material.

      Gambles says:"Technology will enable us to make the library's content and services open to citizens

as never before."

1. The underlined 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 many worldfamous 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. a,b,d      

B. a,c,e

C. b,c,d      

D. b,d,e

4. The text is most probably taken from ________.

A. a computer book        

B. a library guide

C. a project handbook      

D. a newspaper report

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