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对2025年后全世界、各个地区、各个国家的人口进行预测,这是属于高度推理性的。就短期预测来说,其机制是相同的,但是对人口变化的各种因素的设想则需要根据当前人口的趋势和今
It is highly reasoned to predict the population of all regions, regions and countries after 2025. The mechanism is the same for short-term projections, but the assumptions on the various elements of demographic change need to be based on current demographic trends and present