可以用项目三角形表示项目管理中主要因素之间相互影响的关系,(56)处于项目三角形的中心,它会影响三角形的每条边,对三条边的任何一条所进行的修改都会影响它。
(129)
(127)
(128)
(126)
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.
(124)
A firewall is a(71)system designed to(72)an organization's network against threats.
(122)
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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