应用程序在执行过程中,需要通过打印机输出数据时,一般先形成一个打印作业,将其存放在硬盘中的一个指定(40)中。当打印机空闲时,就会按先来先服务的方式从中取出待打印的作业进行打印。
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An instruction is made up of operations that(68)the function to be performed and operands that represent the data to be operated on. For example, if an instruction is to perform. the operation of(69)two numbers, it must know(70)the two numbers are. The processor's job is to(71)instructions and operands from memory and to perform. each operation. Having done that, it signals memory to send it(72)instruction.
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A firewall is a(71)system designed to(72)an organization's network against threats.
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在常用的字处理软件中,选中文本块后,按下Ctrl键再拖曳鼠标,可以()
There are many page replacement algorithms in the page management. Most frequently used algorithm is(69).
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