题目内容

一个电子数据交换(EDI)系统包含四大功能模块：联系模块、报文生成及处理模块、 (41) 和通信模块。电子商务是贸易链上的各个参与方在计算机信息网络环境下，通过 (42) 和信息安全保证，对贸易流程全方位的处理过程。企业开展电子商务后，对企业信息系统将会提出更高的要求，企业制造资源的管理、敏捷制造以及与外界相关的 (43) 都将提到发展的议程上来。

A. 密码体系
B. 标准化体系
CA论证
D. 信息处理

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OSI参考模型的七层中，最复杂、协议最多的是【5】。

帧中继采用【7】方式来传送数据。

一般来说，网络操作系统可以分为两类：一类是面向任务型NOS：另一类是【14】 NOS。

During the past years, intelligent technology has evolved (116) three generations. The first was characterized by tools such as prolog and OPS. prolog is a simple backward-chaining environment, and OPS is a simple forward-chaining environment. This led to the second generation of knowledge-engineering environments. Its goal was to model, prototype and construct (117) systems.All three generations were oriented toward generic (118) and represented generalized implementation environments for the construction of expert systems. knowledge bases and AI applications.Some of the solution-oriented products are also seamlessly integrated with generic knowledge-engineering environments, permitting end users to add (119) rules and objects, as well as predefined knowledge-based logic to address problems in manufacturing simulation.Marketplace orientation is rapidly (120) toward solution-oriented intelligent product environments. the fourth generation represents a new line of thinking and ’ develop-merit by commercial fu-ms. will reduce the cost risk and development time associated with problem solving. （117）是（）

A. custom
B. knowledge
C. through
D. problem solving