Viruses can worm their way into your computer from a variety of sources that contain viruses. Once viruses get into your online business computer, it can wreak havoc in a variety of ways that range from sending spam emails out to your database of customers to completely shutting down your computer. The best way to prevent viruses, worms and other problems from infecting your computer and your online business is to install anti-virus software. Also be sure to keep the antivirus software up-to-date.
Hackers and other unauthorized individuals accessing information on your customers and personal and business financial information can create a myriad of problems including identity theft. In order to prohibit unauthorized sources from accessing all of this pertinent information, you should install a firewall, which blocks unauthorized access to your computer. It is just as important to maintain your firewall by updating it regularly to further protect your computer.
A loss of your business data can occur from a virus or another malfunction with your computer. It's imperative that you institute a backup protocol to ensure that you have a recent copy of the data and programs on your computer. Not only does backup data protect you from a loss from virus infection, but it also ensures you can recover your business information on business website if there is a fire or theft.
12. "Worm" in the first paragraph indicates that viruses ______.
A、no bones
B、work slowly and secretly
C、work difficultly
D、have no legs
【正确答案】：B
【题目解析】：分析该句的句子成份可知worm在这里做动词，worm名词意为”蠕虫“，动词意为”慢慢前行“。选项A 没有骨头，不符句意；选项B 秘密而缓慢地工作；选项C 艰难地工作；选项D 没有腿，不符句意。综合所有选项只有选项B与之意思相近，故选B。
