听下面一段独白，回答1-3题。 1. Who is the speaker probably talking to? [
| 听下面一段独白，回答1-3题。 |
| 1. Who is the speaker probably talking to? |
| [ ] |
| A. His office staff. B. His technical officers. C. His customers. |
| 2. What is the talk mainly about? |
| [ ] |
| A. How to remove a computer virus. B. A warning about a computer virus attack. C. The damage computer viruses can cause. |
| 3. What are the listeners asked to do? |
| [ ] |
| A. Stop using their email accounts. B. Stop visiting unknown websites. C. Increase their computer security. |
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