From 1990 to 2010, more than 1 people in China moved from rural areas into cities.
                    举一反三
- 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.
 - Four more people were employed in cities and 10) ______ people lifted out of poverty in rural areas on average every ten seconds.
 - The activities available to people in rural areas are much morethan to_______ people in big cities. (limit)
 - 中国大学MOOC: Why did so many people leave rural areas to cities?
 - People always learn more from one’s failure than from the success!
 
