UNIX System can support.a. many users b. single userc. many--高校试题库-www.gxtiku.com

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carriage return

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The central processing unit (CPU) is the heart of the computer systems. ( )

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C++ is .
a. object-oriented b. procedure-oriented
c. extended from C d. a superset of C

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The transmission media used to build a LAN may be（）
a. twisted pair b. microwave c. coaxial cable d. optical fiber

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code windows ( )
a.字处理器 b.交换机 c.多媒体 d.局域网 e.结构化程序设计 f.软件生命周期 g.功能测试
h.代码窗口 i.黑客 j.防火墙