Oracle数据库中Schema是指（）。

A:数据库中对象的物理组织 B:数据库中对象的逻辑组织 C:索引的集合 D:备份方案

在Windows内置组中，（）组对计算机有不受限制的访问权。

A:Administrators B:Administrator C:LocalSystems D:Admins

Text 2
Traditionally, the study of history has had fixed boundaries and focal points -- periods, countries, dramatic events, and great leaders. It also has had clear and firm notions of scholarl procedure: how one inquires into a historical problem, how one presents and documents one’s findings, what constitutes admissible and adequate proof.
Anyone who has followed recent historical literature can testify to the revolution that is taking place in historical studies. The currently fashionable subjects come directly from the sociology catalog: childhood, work, leisure. The new subjects are accompanied by new methods. Where history once was primarily narrative, it is now entirely analytic. The old questions "What happened" and “How did it happen” have given way to the question "Why did it happen Prominent among the methods used to answer the question "Why" is psychoanalysis, and its use has given rise to psychohistory.
Psychohistory does not merely use psychological explanations in historical contexts. Historians have always used such explanations when they were appropriate and when there was sufficient evidence for them. But this pragmatic use of psychology is not what psychohistorians intend. They are committed, not just to psychology in general, but to Freudian psychoanalysis. This commitment precludes a commitment to history as historians have always understood it. Psychohistory derives its "facts" not from history, the detailed records of events and their consequences, but from psychoanalysis of the individuals who made history, and deduces its theories not from this or that instance in their lives, but from a view of human nature that transcends history. It denies the basic criterion of historical evidence: that evidence be publicly accessible to, and therefore assessable by, all historians. And it violates the basic tenet of historical method: that historians be alert to the negative instances that would refute their theses. Psychohistorians, convinced of the absolute rightness of their own theories, are also convinced that theirs is the "deepest" explanation of any event, that other explanations fall short of the truth.
Psychohistory is not content to violate the discipline of history (in the sense of the proper mode of studying and writing about the past); it also violates the past itself. It denies to the past an integrity and will of its own, in which people acted out of a variety of motives and in which events had a multiplicity of causes and effects. It imposes upon the present, thus robbing people and events of their individuality and of their complexity. Instead of respecting the particularity of the past, it assimilates all events, past and present, into single deterministic schema that is presumed to be true at all times and in all circumstances.

A:The lives of historical figures are presented in episodic rather than narrative form B:Archives used by psychohistorians to gather material are not accessible to other scholars C:Past and current events are all placed within the same deterministic schema D:Events in the adult life of a-historical figure are seen to be more consequential than are
those in the childhood of the figure

Web Service 的各种核心技术包括XML、Namespace、XML Schema、SOAP、WSDL、UDDI、WS-Inspection、WS-Security、WS-Routing等，下列关于Web Service技术的叙述错误的是（）。

A:XML Schema是用于对XML中的数据进行定义和约束 B:在一般情况下，Web Service的本质就是用HTTP发送一组Web上的HTML数据包 C:SOAP(简单对象访问协议)，提供了标准的RPC方法来调用Web Service，是传输数据的方式 D:SOAP是一种轻量的、简单的、基于XML的协议，它被设计成在Web上交换结构化的和固化的信息

Web Service的各种核心技术包括XML、Namespace、XML Schema、SOAP、WSDL、UDDI、WS-Inspection、WS-Security、WS-Routing等，下列关于Web Service技术的叙述错误的是（）

A:XML Schema是用于对XML中的数据进行定义和约束 B:在一般情况下，Web Service的本质就是用HTTP发送一组WEB上的HTML数据包 C:SOAP （简单对象访问协议）， 提供了标准的RPC方法来调用Web Service，是传输数据的方式 D:SOAP是一种轻量的、简单的、基于XML的协议，它被设计成在WEB上交换结构化的和固化的信息

One of the difficulties in building an SQL-like query lange for the Web is the absence of a database schema for this huge, heterogeneous repository of information. However, if we are interested in HTML documents only, we can construct a virtual (66) from the implicit structure of these files. Thus, at the highest level of (67) , every such document is identified by its Uniform Resource Locator (URL), has a title and a text Also, Web servers provide some additional information such as the type, length, and the last modification date of a document. So, for data mining purposes, we can consider the site of all HTML documents as arelation:
Document (url, (68) , text, type, length, modify)
Where all the (69) are character strings. In this framework, anindividual document is identified with a (70) in this relation. Of course, if some optional information is missing from the HTML document, the associate fields will de left blank, but this is not uncommon in any database.

A:schema B:relation C:platform D:module

One of the difficulties in building an SQL-like query language for the Web is the absence of a database (131) for this huge, heterogeneous repository of information. However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure of these files. Thus, at the highest level of (132) , every such document is identified by its Uniform Resource Locator (URL), and a (133) and a text. Also, Web severs provide some additional information such as the type, length, and the last modification date of a document. So for data mining purposes, we can consider the set of all HTML documents as a relation:
Document (url, rifle, text, type, length, modif)
Where all the (134) are character strings. In this framework, an individual document is identified with a (135) in this relation. Of course, if some optional information is missing from the HTML document, the associate fields will be left blank, but this is not uncommon in any database.

A:schema B:platform C:module D:relation

One of the difficulties in building an SQL-like query language for the Web is the absence of a database (131) for this huge, heterogeneous repository of information. However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure of these files. Thus, at the highest level of (132) , every such document is identified by its Uniform Resource Locator (URL), and a (133) and a text. Also, Web severs provide some additional information such as the type, length, and the last modification date of a document. So for data mining purposes, we can consider the set of all HTML documents as a relation:
Document (url, rifle, text, type, length, modif)
Where all the (134) are character strings. In this framework, an individual document is identified with a (135) in this relation. Of course, if some optional information is missing from the HTML document, the associate fields will be left blank, but this is not uncommon in any database.

A:schema B:platform C:module D:relation

One of the difficulties in building an SQL-like query language for the Web is the absence of a database （） for this huge, heterogeneous repository of information. However, if we are interested in HTML documents only, we can construct a virtual schema from the implicit structure of these files. Thus, at the highest level of （） , every such document is identified by its Uniform Resource Locator (URL), has a （） and a text. Also, Web servers provide some additional information such as the type, length, and the last modification date of a document. So, for data mining purposes, we can consider the set of all HTML documents as a relation: Document(url, title, text, type, length, modif)Where all the （） are character strings. In this framework, an individual document is identified with a （） in this relation. Of course, if some optional information is missing from the HTML document, the associate fields will be left blank, but this is not uncommon in any database.

A:schema B:platform C:module D:relation

Web Service的各种核心技术包括XML、Namespace、XML Schema、SOAP、WSDL、UDDI、WS-Inspection、WS-Security和WS-Routing等。以下关于Web Service技术的叙述，错误的是______。

A:在一般情况下，Web Service的本质就是用HTTP发送一组Web上的HTML数据包 B:XML Schema是用于对XML中的数据进行定义和约束 C:SOAP(简单对象访问协议)，提供了标准的RPC方法来调用Web Service，是传输数据的方式 D:SOAP是一种轻量的、简单的、基于XML的协议，它被设计成在Web上交换结构化的和固化的信息