听力原文:M: I must point out the trials of new medicine are expensive and you can never gu
W: But there is a very good chance in this case. I do hope you'll go ahead in view of the potential benefit to mankind.
Q: What are the two speakers talking about?
(5)
A.A prediction of the future of mankind.
B.A new drug that may benefit mankind.
C.An opportunity for a good job.
D.An unsuccessful experiment.