According to the text, scholars and students are great travelers because The writer thinks that academic work has recently beco

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问题 According to the text, scholars and students are great travelers because
The writer thinks that academic work has recently become more specialized because

选项 A、more people are studying sciences.
B、a greater variety of subjects is studied.
C、more students are doing postgraduate work.
D、the number of universities has increased.

答案B

解析 从第5段第1句可推出正确答案。其他各项皆无。
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