Passage Three Questions 32 to 35 are based on the passage you have just heard.

A．He likes Professor Lee’s lectures very much.
B．People can drink tea in Professor Lee’s lectures.
C．Professor Lee’s lectures are boring.
D．Professor Lee has put away all his papers.

A．The ultimate content remains the same.
B．The vitamin content is reduced.
C．The food becomes poisonous.
D．Vitamin is added to the food.