题目内容

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

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

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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

Select the valid relational operators supported in C.

A. <
B. >
C. ==
D. !=
E. >=
F. <=
G. =
H. =!
I. =>
J. =<