17.听第9段材料,回答第13至l6题. 13.What is probably the woman? A.A professor. B.A bookseller. C.A librarian. 14.Why does the man need to the bank? A.To prepare for his sociology class. B.To learn something about the modern age. C.To satisfy his professor. 15.What can a student do with a book in the reserves room(储备室)? A.Take it out of the room. B.Read it for a few hours. C.Place it on a special shelf. 16.What is the man going to do next? A.Go to visit his professor. B.Go to the reserves room. C.Return to the classroom.