[单项选择]　Passage 1 　　Questions 1 to 5 are based on the following passage: 　　There are many older people in the world and there will be many more. A liMe-known fact is that over 60 percent of the older people live in developing countries. According to the World Health Organization, by 2020 there will be 1 billion, with over 700 million living in developing countries. 　　It is a surprising fact that the population ageing is particularly rapid in developing countries. For example, it took France 115 years for the proportion of older people to double from 7 percent to 14 percent. It is estimated to take China a mere 27 years to achieve this same increase. 　　What arethe implications of these increased numbers of older folk (76) One of the biggest worries for governments is that the longer people live. the more likelihood there is for diseases and for disability( 残疾). Attention is being paid to the need to keep people as healthy as possible, including during old age, to lessen the financial burd
A. is bigger in developed countries than in developing countries
B. is one-seventh of the population developing countries
C. will increase much faster in China than in France
D. will be sixty percent in developing countries by 2020

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