听力原文:M: The visiting economist is speaking tonight. But Dr. Johnson doesn't seem to th
W: That's because Dr. Johnson comes from an entirely different school of thought.
Q: What do we learn from this conversation?
(14)
A.The visiting economist has given several lectures.
B.Dr. Johnson and the guest speaker dislike each other.
C.Dr. Johnson invited the economist to visit their college.
D.Dr. Johnson and the guest speaker have different opinions.