● 在ISO OSI/RM中，__(61)__实现数据压缩功能。
　　（61）A．应用层　　　　　B．表示层　　　 C．会话层　　 D．网络层

　　● 以下连网设备中，工作于网络层的设备是__(62)__。
　　（62）A．调制解调器　　B．以太网交换机　 C．集线器　　　D．路由器

　　● 内部局域网中，客户机通过代理服务器访问Internet的连接方式如下图所示，在Windows操作系统中，__(63)__软件不能提供代理服务器功能。地址为192.168.1.100的客户机配置"TCP/IP 网络属性"时，其中"网关"的设置内容应是__(64)__。该客户机访问Internet时，经由代理服务器后数据包的源地址为__(65)__。

　　（63）A．IIS　　　　　B．ISA　　　　　C．WinGate　　　　D．SysGate
　　（64）A．192.168.1.1　B．192.168.0.1　C．220.110.10.1　 D．192.168.1.100
（65）A．192.168.1.1 B．192.168.0.1 C．220.110.10.1 D．192.168.1.100

　　● Microsoft's COM is a software __(66)__ 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 dynamically discover the interfaces implemented by other components, and a mechanism to identify components and their interfaces uniquely.
　　OLE is a compound __(67)__ standard developed by Microsoft. OLE makes it possible to create __(68)__ with one application and link or embed them in a second application. Embedded objects retain their original format and __(69)__ to the application that created them. Support for OLE is built into the Windows and MacOS Operating Systems. A __(70)__ compound document standard developed mainly by Apple and IBM is called OpenDoc.
　　（66）A．architecture　 B．protocol　　 C．procedure　　 D．structure
　　（67）A．text　　　　　 B．graphic　　　C．document　　　D．database
　　（68）A．table　　　　　B．event　　　　C．objects　　　 D．function
　　（69）A．characteristics B．address　　 C．page　　　　　D．links
　　（70）A．completing　　 B．competing　　C．connecting　　D．contained

　　● VRML is a __(71)__ 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 __(72)__ (z and time) to the presentation of documents. The applications of VRML are__(73)__,rangingfromsimplebusinessgraphicstoentertainingWWWpage 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 __(74)__ with VRML. Furthermore, it is componentized, profiled, and extensible, which makes it possible to use X3D in very different __(75)__, from high-end visualizations to lightweight applications.
　　（71）A．link　　　　　B．format　　　　C．structure　　　D．procedure
　　（72）A．subject　　　 B．object　　　　C．dimensions　　 D．disconnection
　　（73）A．broad　　　　 B．implicit　　　C．explicit　　　 D．special
　　（74）A．inconsistent　B．independent　 C．applicable　　 D．compatible
　　（75）A．scenarios　　 B．places　　　　C．applications　 D．programs