Cambridge University provides opportunities for educational achievement which are probably unequalled. This is, above all, the place for students with inquiring minds who want to extend their mastery of an educational discipline. The admission standard is high—the great majority of entrants(入学者) have at least AAB grades at GCE A level(or the equivalent), but learning ability is the only quality they all share. Students at Cambridge come from a wide range of educational and social backgrounds. Whatever your background, you yourself have to make the decision to apply, and you, as all individuals, will be considered for admission.
At Cambridge, Open Days are arranged to help you to experience the atmosphere and see the facilities in a College. Admissions and teaching staff will be there to answer any questions about educational matters, your qualifications, life in a college and so on. This would be the moment to discuss your school courses, if they are in any way different from conventional academic A-levels. If you cannot come on an Open Day, an informal visit to a college can often be arranged, by contacting the Admissions Office well beforehand.
Cambridge graduates traditionally go into a very wide range of occupations. Usually over a quarter will continue with some further study, either for a higher degree or for a vocational(职业的) qualification.

According to the passage, the only quality shared by the students in Cambridge is（）