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  3. How to protect your computer from being attacked by a virus: Be sure to have a good antivirus program and update it regularl

How to protect your computer from being attacked by a virus: Be sure to have a good antivirus program and update it regularl

admin2015-04-17  54
问题     How to protect your computer from being attacked by a virus:
    Be sure to have a good antivirus program and update it regularly. You will also want to make sure that your Internet browser and operating system have had all the necessary security patches (补丁) applied.
    Then, you may think you have a virus, but how do you really tell? You scan your system for viruses with a software program. If you don’ t have antivirus software, you can purchase it online or you can use Panda Software’ s free Active Scan that will scan you computer and report on any infections.
    If the virus scan finds an infection, it will give you the name of the virus or viruses that you have contracted. If your computer is infected, you need to take immediate action. Depending on the severity of the virus, the health of your computer as well as the security of your computer data may be at risk. Look up the virus at one of the antivirus manufacturers’ s websites.
How do you know that your computer is infected? You know it by_________your computer for virus with a software program.
选项
答案scanning
解析 从原文“you may think you have a virus，but how do you really tell?You scan your system for viruses with a software program”可以得到答案。题干中scan作by的宾语，所以转化为scanning。
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本试题收录于： 大学英语三级B级题库大学英语三级分类
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