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 the woman's remark?
(19)
A.Dr. Johnson and the guest speaker were schoolmates.
B.Dr. Johnson invited the economist to visit their school.
C.The guest lecturer's opinion is different from Dr. Johnson's.
D.The economist and Dr. Johnson come from different schools. Questions 19 to 22 are based on the conversation you have just heard.