单项选择题
VRML is a（1）for 3D multimedia and shared virtual worlds on the WWW.In comparison to HTML, VRML adds the next level of interaction,structured graphics,andextra（2）（z and time）to the presentation of documents.The applications of VRMLare（3）,ranging from simple business graphics to entertaining WWW page graphics, manufacturing,scientific,entertainment,and educational applications,and 3D shared virtual worlds and communities. X3D is the name under wluch the development of VRML is continueD.X3D is based on XML andis backwards（4）with VRML.Furthermore,it is componentized,profiled, and extensible,which makes it possible to use X3D in very different（5）,from high-end visualizations to lightweight applications.
单项选择题
SOX is an alternative（1）for XML.It is useful for reading and creating XML content in a（2）.editor.It is then easily transformed into proper XML.SOX was created because developers can spend a great deal oftime with raw XML.For many ofus,thepopular XML（3）have not reached a point where their tree views,tables and forms can completely substitute for the underlying（4）languagE.This is not surprising when one considers that developers still use a text view,albeit enhanced,for editing other languages such as Java）SOX uses（5）to represent the structure of an XML document,which eliminates the need for closing tags and a number of quoting devices.The result is surprisingly clear.
单项选择题
SOX is an alternative（1）for XML.It is useful for reading and creating XML content in a（2）.editor.It is then easily transformed into proper XML.SOX was created because developers can spend a great deal oftime with raw XML.For many ofus,thepopular XML（3）have not reached a point where their tree views,tables and forms can completely substitute for the underlying（4）languagE.This is not surprising when one considers that developers still use a text view,albeit enhanced,for editing other languages such as Java）SOX uses（5）to represent the structure of an XML document,which eliminates the need for closing tags and a number of quoting devices.The result is surprisingly clear.
单项选择题为了直观地分析系统的动作，从特定的视点出发描述系统的行为，需要采用动态分析的方法。其中（1）本来是表达异步系统的控制规则的图形表示方法，现在已经广泛地应用于硬件与软件系统的开发中，它适用于描述与分析相互独立、协同操作的处理系统，也就是并发执行的处理系统。（2）是描述系统的状态如何响应外部的信号进行推移的一种图形表示。
单项选择题需求分析是一种软件工程活动，它在系统级软件分配和软件设计间起到桥梁的作用。需求分析使得系统工程师能够刻画出软件的（1）、指明软件和其他系统元素的接口、并建立软件必须满足的约束。需求分析是发现、求精、建模和规约的过程。包括详细地精化由系统工程师建立并在软件项目计划中精化的软件范围，创建所需数据、信息和（2）以及操作行为的模型，此外还有分析可选择的解决方案，并将它们分配到各软件元素中去。
