单项选择题
Passage 2 Questions 13 to 15 are based on the passage you have just heard.
A．it is useful. B．It is harmful. C．It is a waste of time D．It is unnecessary.
A．To read more and more. B．To write more and more. C．To study more and more. D．To remember more and more.
A．the college and university, can be described as a variety of institutions B．a college may form one major division of a university C．colleges may also be independent of a university D．universities generally consist of various colleges and professional schools