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问题 单项选择题

我国的项目建议书、可行性研究报告、初步设计文件、施工图设计等都是由技术人员牵头完成，很容易造成他们在这期间更注重项目规模大、技术先进、建设标准高等，而忽视了( )。

A．经济因素
B．市场因素
C．技术因素
D．环境因素

答案

参考答案：A

问答题 简答题

官渡之战，袁绍以七十万大军败于曹操七万军队，是何缘故？请简述其经过（29回）
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单项选择题

For each blank, choose the best answer from the four choices and write down on the answer sheet.

(21) is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication.

(22) is a professional organization of individuals in multiple professions which focuses on effort on lower-layer protocols.

(23) functions with two layers of protocols. It can connect networks of different speeds and can be adapted to an environment as it expands.

(24) is the popular LAN developed under the direction of the IEEE802.5.

(25) 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.

（24）是（）

A.Ethernet

B.TokenBus

C.TokenRing

D.DQDB
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