人口老龄化已经成为全世界的普遍现象。Population ageing has become a world -wide common phenomenon.

游客2025-03-03 0

问题人口老龄化已经成为全世界的普遍现象。

选项

答案 Population ageing has become a world -wide common phenomenon.

解析

转载请注明原文地址:https://tihaiku.com/zcyy/3980280.html

相关试题推荐

随机试题

最新回复(0)