面向对象程序设计笔记=chapter01

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1.
cpu的速度能够用什么来表示。= =博主也看不懂
2.

_____________ is a program that runs on a computer to manage and control a computer's activities.
所选答案：	
正确 C.Operating system
答案：	
A.Compiler
B.Modem
正确 C.Operating system
D.Java
E.Interpreter