题目内容

( ) shares the feature that they are limited in range: typically they cover one building.

A. WAN
B. MAN
C. LAN
D. Internet

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The fourth generation computers, such as microcomputers, introduced in 1970s, were based on ( ).

A. transistors
B. vacuum tubes
C. IC
D. VLSI

During ( ), the implemented system is tested to see that it meets the specified requirements.

A. analyse
B. requirement
C. design
D. testing

A program is a sequence of ( ) that can be executed by a computer.

A. digits
B. numbers
C. instructions
D. Sentences

.许多冰箱生产厂家近年来高举“环保”、“健康”旗帜，纷纷推出无氟冰箱。它们所奉行的市场营销管理哲学是什么？

A. 推销观念
B. 生产观念
C. 市场营销观念
D. 社会市场营销观念