【单选题】There are many older people in the world and there will be many more. A little-known fact is that over 60 percent of the older people live in developing countries. According to the World Health Organi...
A.
is bigger in developed countries than in developing countries
B.
is one-seventh of the population in developing countries
C.
will increase much faster in China than in France
D.
will be sixty percent in developing countries by 2020
【简答题】There are many older people in the world and there will be many more. A little-known fact is that over 60 percent of the older people live in developing countries. According to the World Health Organi...