17、their own laboratory work.24. A) Most of them have a long history.B) Many of them are specialized libraries.C) They house more books than any other university library.D) They each have a copy of every book published in Britain.25. A) Very few of them are engaged in research.B) They were not awarded degrees until 1948.C) They have outnumbered male students.D) They were not treated equally until 1881 。

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