题目内容：
请根据下面短文回答题： "Where is the university?" is a question many visitors to Cambridge ask, but no one can give them a clear an- swer for there is no wall to be found around the university. The university is the city. You can find classroom build- ings, libraries, museums and offices of the university all over the city. And most of its members are the students and teachers or professors of the thirty-one colleges.
Cambridge was already a developing town long before the first students and teachers arrived about 800 years
ago. It grew up by the river Granta, as the Cam was once called. A bridge was built over the river as early as 875. In the fourteenth and fifteenth centuries more and more land was used for college buildings. The town grew much faster in the nineteenth century after the opening of the railway in 1845. Cambridge became a city in 1951 and now it has a population ( 人口 ) of over 100,000. Many young students want to study at Cambridge. Thousands of people from all over the world come to visit the university town. It has become a famous place all around the world.
Why do many visitors come to Cambridge? A．To see Cambridge University.
B．To study in the colleges in Cambridge.
C．To use the libraries of the university.
参考答案：
答案解析：