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
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
举一反三
- ● Computer software is a set of computer ____________(程序). A: programs B: system C: process D: viruses
- Anti-Virus software protects your computer from viruses by ( ) your computer's memory and disk devices.
- 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.
- Nowhere in the definition(定义) of computer viruses(病毒) is there any mention(提及) of nonprompted, secret operations(无提示的秘密操作), of destructive actions(破坏性的行为), or of spreading across multiple computer installations(设施).
- By connecting ____ to the personal computer and the CNC, the programmer can transfer programs from the computer to the CNC.