Stage 1: Birth rate - High , Death rate - High , Life expectancy - Low , , Stage 2: Birth rate - Still high, Death rate - Falling , Life expectancy - Growing , , Stage 3: Birth rate - Falling , Death rate - Low , Life expectancy - Long, , Stage 4: Birth rate - Further declining , Death rate - Remains low , Life expectancy - Longer, , Stage 5: Birth rate - Very low , Death rate - Overtaking birth , Life expectancy - Very long , ,

排行榜

视觉风格

选项

切换模板

恢复自动保存: