来源：新东方版 2017-06-17 18:49
51. [B] It was unaffordable for ordinary people.
52. [C] They were versed in literature and interested in art.
53. [D] They gained some knowledge of classical art and architecture.
54. [B] Europe hardly had any museums before the 19th century.
55. [A] There appeared more and more Roman-style buildings.