According to the professor, how did children acquire their culture throughout most of history？
A．By experiencing life in another country
B．By watching cultural programs on television
C．By going to the museum and the library
D．By listening to parents and grandparents

What can be inferred about surviving anaphylaxis？
A．It is impossible for children to survive anaphylaxis.
B．Only a few people have ever survived anaphylaxis.
C．Survival depends on immediate medical treatment.
D．The professor knows someone who survived the disease.

According to the professor, what two factors led to the similarity of goods available nationwide？ Click on two answers.
A．The mass production of goods
B．The wide distribution of catalogs
C．The growing interest in regional styles
D．The desire to copy designer fashions

What does the student imply about golf？.
A．Golf is his favorite leisure activity.
B．He enjoys playing golf with his boss.
C．He would like to know more about golf.
D．He has never played golf before.

It was suggested that the agreement __ before the end of the year.
A．be signed
B．was signed
C．would be signed
D．had been signed

Listen again to part of the lecture. Then answer the question. Why does the professor say this:
A．To stress the mysterious nature of severe immune responses
B．To argue that anaphylaxis is mainly the result of bad luck
C．To point out that scientists disagree over what causes allergies
D．To suggest that people are crazy to eat offending substances