Why is China.s economic foundation for an elderly society fragile?

选择一项:
A. Because of its decreasing aging population and its high GDP per capita.
B. Because of its increasing aging population and its low GDP per capita.
C. Because when China was classed as an aging society, our GDP per capita is high.
出自:国家开放大学-人文英语3

完成拼图验证

按住下方滑块,将拼图拖到缺口处后松开。

拼图背景,将小拼图拖到缺口处
向右拖动滑块