【正确答案】 B

【答案解析】[解析] 86-88
M: Good afternoon, everyone. Today, I'm happy to introduce our guest speaker, Dr. James Ripley, who has been a research professor of molecular biology for nearly 15 years, and who is also a standing member on the hospital's board of directors. He has published 5 articles in the most well-known medical journals, and his 6th article will be published later this month. Today, Dr. Ripley will speak about how he conducted his research on genetic predispositions to disease, and why his research was so successful. Piease join me in welcoming Dr. James Ripley.