问题 单项选择题

集成视图就是指

A.几个视图通过关系连接起来

B.该视图的数据通过几张表组合

C.在其他视图的基础上再创建视图

D.集成了其他视图的视图

答案

参考答案:C

解析:[分析] 视图兼有“表”和“查询”的特点,与查询类似的地方是,可以用来从一个或多个相关联的表中提取有用信息;与表相类似的地方是,可以用来更新其中的信息,并将更新结果永久地保存在磁盘上。可以从本地表(包括数据库表和自由表)、其他视图、存储在服务器上的表或远程数据源中创建视图。所渭集成视图是指该视图的数据来源也是视图,即集成视图是在已有视图的基础上再创建的视图,因此本题C为正确选项。

阅读理解

For many years, no one could communicate with people who had been born without hearing. These deaf people were not able to use a spoken language.

But, beginning in the 1700s, the deaf were taught a special language. Using the language, they could share thoughts and ideas with others. The language they used was a language without sound. It was a sign language.

How did this sign language work? The deaf were taught to make certain movements using their hands, faces, and bodies. These movements stood for things and ideas. People might move their forefingers across their lips. This meant, “You are not telling the truth.” They might tap their chins with three fingers. This meant, “my uncle”.

The deaf were also taught to use a finger alphabet(字母表). They used their fingers to make the letters of the alphabet. In this way, they spelled out words. Some deaf people could spell out words at a speed of 130 words per minute.

Sign language and finger spelling are not used as much as they once were. Today the deaf are taught to understand others by watching their lips. They are taught how to speak.

小题1:In the 1700s, the deaf were taught __________.

A.to speak

B.to watch others

C.a sign language

D.a spoken language小题2:The word forefingers in paragraph 3 means__________.

A.the finger next to the thumb (拇指)

B.three fingers

C.a language

D.hands小题3:On the whole the story is about __________.

A.how the deaf communicate

B.learning to spell

C.teaching the deaf to speak

D.writing sign languages小题4:Which of these sentences do you think is RIGHT?

A.Deaf people draw signs

B.Deaf people can’t use their fingers.

C.Many deaf people now can speak

D.Deaf people speak with their fingers.

单项选择题 共用题干题