● 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