When a questioner raises an improper question, you should keep silent rather than say something rude to the questioner.
查看答案
To cope with tough questions to which you don’t know the answer, you can seek help from another expert who is present and may be familiar with the specific topic.
In a Q and A session, speakers shouldn’t take too long with one member of the audience.
If you have different opinions with the speaker, you shouldn’t mention it in a Q and A session because it’s rude to do so.
In a question and answer session, both the presenter and questioner can receive valuable feedback about the audience reaction to the subject of the speech.