1.which is true according to the passage?
b. People are tricked to download or open a file or email with attached viruses.
2.Viruses can damage your computer, resulting ________.
d. All are correct (a.a slowing down of the system b.deletion of files c.fatal damage to the hard drive)
3. A computer virus is ________.
c. a computer program that may harm your computer
4. If you want to avoid a computer virus, you _______.
b. shouldn’t open every email
5. Which is the synonym of “fatally” ?
a. completely
6. When biological viruses enter the human body, they…….
d. All are correct.
7. How can we avoid catching biological infection?
c. We mustn’t touch our computers.