According to World Health Organization (WHO), what is the definition of aged society?
AThe elderly citizens aged above 65 make up 20% of the population
BThe elderly citizens aged above 65 make up 14% of the population正確答案
CThe elderly citizens aged above 65 make up 10% of the population
DThe elderly citizens aged above 65 make up 7% of the population
答案與詳解
