题目内容

For data transmission to be successful，sending and receiving devices must follow a set of

A. E-mail B.Intemet C.network D.protocols

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Today it is common to access the Internet from a variety of（）devices like smartphones and

A. mobile B.move C.moving D.shift

Businesses have also been engaging in a type of electronic commerce , （）occurs when one business transmits computer-readable data in a standard format to another business.

A. EFT B.EDI C.ERP D.CRM

A（）is an independent firm that offers connection and transaction-forwarding services to buyers and sellers engaged in EDI.

A. WAN B.LAN C.VPN D.VAN

可行性分析就是根据系统的环境、资源等条件，判断新系统的建设项目是否有必要、有可能开始进行，可行性包括运行可行性、（）、经济可行性、社会环境可行性 4 个方面。

A. 企业需求分析 B. 技术可行性 C. 项目效益的估算 D. 运行效率