计算机感染病毒后应该采取适当的措施阻止病毒的进一步感染,下面的操作中无效的是(28)。
Pharming is a scamming practice in which malicious code is installed on a personal computer or server, misdirecting users to(74)Web sites without their knowledge or consent。
To verify that your printer is operating correctly, you can run the printer(75)program。
(73)is a six bytes OSI layer 2 address which is burned into every networking device that provides its unique identity for point to point communication。
(72)is an error detection code that most data communication networks use。
Each program module is compiled separately and the resulting.(71)files are linked ether to make an executable application。
(68)
(67)
(66)
数据模型是数据库结构的基础,是用来描述数据的一组概念和定义。数据摸型的三要素是(20)。数据模型分为:(21)和(22),分别用于数据库的设计和实现。(23)是一类概念数据模型。
(64)
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