5. Which of the following is not a way to avoid viruses?
A: Use a firewall.
B: Be careful about unknown messages
C: Do not surf.
D: Disconnecting from the Internet.
A: Use a firewall.
B: Be careful about unknown messages
C: Do not surf.
D: Disconnecting from the Internet.
举一反三
- It was in the year 1999 ____ John Smith found a way to send messages on the Internet. A: in which B: that C: when D: which
- What is the theme of the essay A: How to surf on the Internet. B: How to write entails on the Internet. C: How to chat on the Internet. D: How to use the Internet differently by men and by women.
- Which of the following things you should do in the office? A: Send personal messages on your workplace email account B: Avoid such topics as Buddhism, Christianity and Islam C: Look for a new job while at work D: Talk negatively about coworkers
- We<br/>learn from the conversation that people A: cannot<br/>Jive without the internet. B: cannot<br/>work without the internet. C: all<br/>use the internet to keep in touch. D: have<br/>varied opinions about internet use.
- Which of the following business messages would use the direct strategy?