What was the total aged population in 2010?

admin2015-01-11  14

问题
What was the total aged population in 2010?

选项 A、45 million
B、40 million
C、33 million
D、30 million

答案B

解析 根据图表,2010年的老龄人口为40 million,故本题答案为B。
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