题目内容：
请根据下面的短文回答第题： “Where is the umversity?”is a question many visitors to Cambridge ask，bm 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 andteachers or professors of the thirty-one colleges．
Cambridge was already a developing town long before the first students and teachers arrived about 800 yearsago．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 grewmuch faster in the nineteenth century after the opening of the railway in 1845．Cambridge became a city in 1951 andnow it has a population (人口) of over 100,000．Many young students want to study at Cambridge．Thousands ofpeople 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．
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