virus

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• 在BIOS中Auti Virus Protection设成Enable，则在装windows98时，可能会（）。

  A . A、速度变慢 B . B、速度加快 C . C、频繁重启 D . D、死机

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• 关于灭活的仙台病毒（Sendi virus），下列哪项有误（）

  A . 是一种常用的细胞融合诱导剂 B . 仙台病毒受体广泛存在于各类细胞 C . 融合效率较高 D . 为病毒融合剂的代表 E . 即使灭活不完全也不会感染细胞

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• 病毒（virus）

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• 条件缺损病毒（coditionally defective viruses）

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• 病毒粒子（病毒个体virus particle）

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• 滤过性病毒（Filterable virus）

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• 病毒（Virus）基本特征有哪些？

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• It’s a good way to try some anti-virus software to kill viruses.

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• The computer can easily get stuck, so you must __of computer virus.

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• According to the passage, scientists have discovered that influenza viruses_____.

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• The information of the system can be stolen by viruses.

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• The virus is transmitted most commonly through ______.

  A．programs sent by modem B．shrink-wapped retail software C．piracy of software D．the use of floppy disks

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• Anti- virus software protects your computer from viruses by（75)your computer's memory and

  Anti- virus software protects your computer from viruses by(75)your computer's memory and disk devices. A．deleting B．changing C．scanning D．replacing

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• Trajan horse virus is referred to unexpected computer virus for its hidden danger.

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• Kaspersky Anti－Virus是（)病毒软件。

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• NCBI的Genome数据库中ANMV-1 virus基因组为（）kb。

  A．44.5 B．38.46 C．69 D．36.46

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• The goods are now ready for（)．A．woolB．water proofC．packingD．Virus

  The goods are now ready for()． A．wool B．water proof C．packing D．Virus

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• What do scientists say about the transmission of the swine flu virus？

  A) It is easily transmitted from person to person. B) It remains unclear how it is transmitted. C) It is transmitted by sneezing or coughing. D) It is transmitted by skin-to-skin contact.

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• To prevent viruses from spreading, we should______.

  A．shake hands with our friends instead of kissing them B．never touch the telephones, towels or plates C．often wash our hands D．often rub our noses and eyes

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• Scientists have established that influenza viruses taken from man can cause the disease in animals. In addition, man can catch the disease from animals. In fact, a great number of wild birds seem to carry the virus without showing an evidence of illness. Some scientists concluded that a large family of influenza viruses may have evolved in the bird kingdom, a group that has been on the earth 100 million years and is able to carry the virus without contracting the disease. There is even convincing evidence to show that virus strains are transmitted from place to place and from continent to continent by migrating birds.

  It's known that two influenza viruses can recombine when both are present in an animal at the same time, the result of such recombination is a great variety of strains containing different H and N spikes. This raises the possibility that a human influenza virus can recombine with an influenza virus from a low animal to produce an entirely new spike. Research is underway to determine if that is the way that major new strains come into being, another possibility is that two animal influenza strains may recombine in a pig, for example, to produce a new strain which is transmitted to man. According to the passage, scientists have discovered that influenza viruses ______. A．cause ill health in wild birds B．do not always cause symptoms in birds C．are rarely present in wild birds D．change when transferred from animals to man

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• The virus can only be transmitted through （) contact.

  A.familiar B.intimate

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• The hospital may have exposed the patients to the viruses, because

  A．they tried to protect their delicate instruments. B．they didn"t follow the policy accordingly. C．they didn"t know how to follow the policy sometimes. D．they have good intentions but the end result is bad.

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