Which of the following can be inferred from the passage
A: There are useful viruses as well as harmful ones.
B: Many virus checking software is free of charge.
C: Even if you take the advice, your computer may still be infected with viruses.
D: Shut down your computer whenever there is a virus.
A: There are useful viruses as well as harmful ones.
B: Many virus checking software is free of charge.
C: Even if you take the advice, your computer may still be infected with viruses.
D: Shut down your computer whenever there is a virus.
举一反三
- Anti-Virus software protects your computer from viruses by ( ) your computer's memory and disk devices.
- The most serious damage caused by the viruses is that ______. A: the computer's functions are lowered B: the normal programs are damaged C: all the information stored in the computer is gone D: the computer infected by the viruses can't be used any longer
- It can be inferred from the passage that all of the following are ways of producing new strains of influenza viruses EXCEPT _____.
- Latency is an outcome particularly characteristic of which one of the following virus groups? A: Polioviruses B: Herpes viruses C: Rhinoviruses D: Influenza viruses
- It can be inferred from the passage that all of the following are with of producing new strains of influenza viruses except ______ . A: two influenza viruses in the same animal recombining B: animal viruses recombining with human viruses C: two animal viruses recombining in one animal D: two animal viruses recombining in a human