From paragraph 1, we know that really aged societies may include The author argues that the main cause of aged societies is

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问题 From paragraph 1, we know that really aged societies may include
The author argues that the main cause of aged societies is

选项 A、the increase in birthrate.
B、the drop in death rate.
C、as much the growth in birthrate as the decline in death rate.
D、not so much the decrease in death rate as the fall in birthrate.

答案D

解析 事实细节题。本题定位于第二段第二句,该句指出存在看似矛盾的观点,即导致老龄人口比重迅速攀升的原因是出生而不是死亡,也就是由于出生率的降低而不是死亡率的降低,即选项D所表述的内容。其他选项都不准确。
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