中国大学MOOC: The 20th century saw a dramatic increase of urbanization. Today, more people live in cities than in rural areas, and urbanization continues to grow around the world.
                    举一反三
- A country's urbanization can be seen from its increase in______. A: wealth B: population C: the number of cities D: urban areas
 - 中国大学MOOC: Why did so many people leave rural areas to cities?
 - 中国大学MOOC: Today, the vast majority of teaching around the world is still geared to preparing young people for lives in the 20th centuries.
 - By the middle of the 21st century, the vast majority of the word's people in cities rather than in rural areas A: are living B: will be living C: have lived D: will have lived
 - According to the passage, more and more people around the world today .
 
