单选题 The expression "step back in time at least a hundred years" (Para.2) is intended to convey the idea that

A、 college classrooms often remind people of their college life.
B、 critical thinking was encouraged even a century ago.
C、 a hundred years ago, desk arrangement in a classroom was quite different.
D、 there is not much change in the college educational idea over the past hundred years.

【正确答案】 D

【答案解析】[解析]从文章语义推知，过去的100年内，大学教育的方式没有多少改变。故应选D。