In the introduction to his speech on the art of digital photography, Li Qiang mentioned that he works part-time at a camera shop and has had some of his pictures printed in the newspaper. By sharing this information with his audience, Li Qiang was seeking to accomplish which goal of a speech introduction?
A、 Reveal the topic.;
B、Establish credibility.;
C、Preview the speech.;
D、 Relate to the audience.
发布时间：2025-08-12 21:15:22
