问题 单项选择题

数据库设计包括两个方面的设计内容,它们是______。

A.概念设计和逻辑设计

B.模式设计和内模式设计

C.内模式设计和物理设计

D.结构特性设计和行为特性设计

答案

参考答案:A

解析:[知识点] 数据库设计方法和步骤:需求分析、概念设计、逻辑设计和物理设计的相关策略
[评析] 数据库设计可分为概念设计与逻辑设计。数据库概念设计的目的是分析数据间内在语义关联,在此基础上建立一个数据的抽象模型。数据库逻辑设计的主要工作是将E-R图转换为指定的RDBMS中的关系模型。

改错题

第四部分 写作(共两节,满分35分)

第一节短文改错(共10个小题,每小题1分,满分10分)

此题要求改正所有短文中的错误。对标有题号的每一行做出判断:如无错误,在该行右边横线上画一个勾(�);如有错误(每行只有一个错误),则按下列情况改正:

此行多一个词:把多余的词用斜线(\)划掉,在该行右边横线上写出该词,并也用斜线划掉。

此行缺一个词:在缺词处加一个漏字符号(),在该行右边横线上写出该加的词。

此行错一个词:在错德词下划一横线,在该行右边横线上写出改正后的词。

注意:原行没有错的不要改。

Ladies and Gentlemen,

May I pay your attention, please? Now we’re looking              56._________

for a passenger, Mr Brown, he is from America. And                       57. _________

he is now leaving Beijing to America by Flight 2748.                       58. _________

But we were told that Mr Brown has left his passport                       59. _________

as good as his wallet in the Friendship Hotel                                          60. _________

which he had stayed at.                                                                 61. _________

The manager of the hotel has just called tell us about it.               62. _________

The manager has been sent his secretary to bring the passport            63. _________

and a wallet here and she will arrive soon. Will Mr. Brown               64. _________

please go to the gate of our airport in about ten minute?                      65. _________

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