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, and extra（2）（z and time） to the presentation of documents. The applications of VRML are（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 which the development of VRML is continued. X3D is based on XML and is 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. 空白（2）处应选择（）
A、subject
B、object
C、dimensions
D、disconnection
C
相关试题
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目前使用最多的网络服务是（）
A、WWW
B、FTP
C、mms
D、telnet
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Microsoft's COM is a software（1）that allows applications to be built from binary software components. COM is the underlying architecture that forms the foundation for higher-level software services, like those provided by OLE. COM defines a binary standard for function calling between components,a way for components to dynarmically discover the interfaces implemented by other components, and amechanism to identify components and their interfaces uniquely. OLE is a compound（2）standard developed by Microsoft. OLE makes it possible to create（3）with one application and link or embed them in a second application.Embedded objects retain their original format and（4）to the application that created them. Support for OLE is builtinto the Windows and MacOS Operating Systems.A（5）compound document standard developed mainly by Apple and IBM is called OpenDoc. 空白（5）处应选择（）
A、completing
B、competing
C、connecting
D、contained
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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, and extra（2）（z and time） to the presentation of documents. The applications of VRML are（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 which the development of VRML is continued. X3D is based on XML and is 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. 空白（2）处应选择（）
A、subject
B、object
C、dimensions
D、disconnection
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下面组合体视图中，正确的左视图是（）。
A、A
B、B
C、C
D、D
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设访问串为：1，3，2，4，1，2，驻留集大小为3，按LRU策略控制上述访问串，应发生（）次页故障。