单项选择题

SECTION A CONVERSATIONS
In this section you will hear several conversations. Listen to the conversations carefully and then answer the questions that I follow.

Questions 1 to 4 are based on the following conversation. At the end of the conversation ,you will be given 20 seconds to answer the questions.
Now listen to the conversation.
What are the speakers

A．Student-Student.
B．Advisor-Student.
C．Professor-Student.
D．Librarian-Professor.

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[听力原文]Is your family interested in buying a dog A dog can be a happy addition to your family, but if you choose the wrong kind of dog, the consequences can cause you a lot of trouble.Families should sit down and thoroughly discuss the problem involved before buying a dog. If you don’t know much about dogs, it’s a good idea to go to the library for books about various kinds of dogs, as well as books about how to train a puppy. In reading about the different breeds, you should know that a dog described as very alert may be too jumpy and bouncy. When a book described a dog as an ideal hunting dog, it probably means that the dog won’t be happy living in a small apartment. Dog breeds vary in popularity as the years go by. One of the most popular dogs these days is the German shepherd. This is be-cause it provides protection as well as companionship. The family should be warned that these dogs grow up to be very big, and may be too powerful for children to handle. If space is limited, a toy dog may be a good choice. These dogs are very small and easy to train. They don’t need to be walked daily, since they can exercise in the space avail-able in the home.

单项选择题

I have to give up my job in advertising because I can't keep up with the rapid ______ of work.

A．rate
B．pace
C．speed
D．velocity

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