Passage 1 本文讨论了科研领域中的专业化和职业化问题。51． D。 本题问：十九世纪，下面哪些学科其专业化更为突出？在文章的第二段的最后一句 话中，作者写到：这一趋势指前面所述“十九世纪学科的职业化（professionalisation）使得从 事科研活动的非专业人员amateurs Passage 1 This article discusses the specialization and professionalization of research. 51. D. The question asked: nineteenth Century, which of the following disciplines are more prominent? In the last sentence of the second paragraph of the article, the author writes: This trend refers to the aforementioned "non-professional 从amateurs engaged in research activities by the professionalization of disciplines in the nineteenth century