2. 计算机
  3. For each blank, choose the best answer from the four choices and write down on the answer sheet. (71) is a professional organ

For each blank, choose the best answer from the four choices and write down on the answer sheet. (71) is a professional organ

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问题 For each blank, choose the best answer from the four choices and write down on the answer sheet.
   (71) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.
   (72) is the popular backbone technology for transmitting information at high speed with a high level of fault tolerance which is developed under the direction of ANSI.
   (73)functions with two layers of protocols. It can connect networks of different, speeds and can be adapted to an environment as it expands.
   A socket is composed of two addresses:(74).
   Heterogeneous network environments consist of computer systems from (75) vendors that run different operating systems and communication protocols.
选项 A、similar
B、different
C、same
D、difference
答案B
解析 IEEE是一个致力于低层协议的专业组织。FDDI是在ANSI指导下发展起来的一项骨干技术，用于高速的信息传送，具有高容错能力。网桥与两层协议一起，能连接具有不同速率的网络，并且当网络扩展时具有很好的适应性。套接字由两部分组成：端口号和IP地址。异构网络环境包括不同制造商和运行不同操作系统及通信协议的计算机系统。
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