In Figure 1, which is a population pyramid for China in 1950, about 7 percentof the population was males 0-4 years of age, and about 6 percent was females 0-4 yearsof age. Thus, about 13 percent of the total population was 0-4 years of age in 1950. Whatpercentage of the ...
population 用法 【释义】 population n.(地区、国家等的)人口,人口数量;某领域的生物,族群,人口; (统计)总体,母体;(天文)星族 复数 populations 【短语】 1 population pyramid 人口金字塔 ; 人口年龄金字塔 ; 金字塔图 ; 人口金字塔图 2 population growth 人口自然增长率 ; 人口增长 ; 生物 种群增长 ; 人口...
China's aging population In terms of demographic developments, the birth control efforts of the Chinese government had considerable effects on the demographic pyramid in China. Upon closer examination of the age distribution, a clear trend of an aging population becomes visible. In order to curb th...
population 用法 【释义】 population n.(地区、国家等的)人口,人口数量;某领域的生物,族群,人口; (统计)总体,母体;(天文)星族 复数 populations 【短语】 1 population pyramid 人口金字塔 ; 人口年龄金字塔 ; 金字塔图 ; 人口金字塔图 2 population growth 人口自然增长率 ; 人口增长 ; 生物 种群增长 ; 人口...
必应词典为您提供population-pyramid的释义,un. 总体金字塔;种群锥体;体均值;种群构成; 网络释义: 人口金字塔;人口年龄金字塔;分群金字塔形图;
At this stage the population pyramid is broad at the base but since the mortality rate is high across all ages—and the risk of death is particularly high for children—the pyramid gets much narrower towards the top. • Stage 2: mortality falls but birth rates still high. In the second...
When you compare the two nations’ population pyramids, you can see howIndia’s populationhas a strong base of young and working-aged people compared to China’s more constrictive population pyramid that also features a higher median age. ...
After 1949, China's urban structure have changed greatly, from original "pyramid" shape into "upside -down pyramid" shape, that is, more megalopolises and metropolises, fewer medium-sized and small cities. The most distinguishing feature of urban population growth was the remarkable increase of ...
China had high fertility and mortality in 1949. The mortality rate improved during the 1950s and 1960s. Fertility declined to 2.24 in 1980. Population size expanded in the early 1950s and 1960s. A baby boom occurred in 1963-64. By 1982, the population pyramid showed the fluctuations in ...
M—population quality N—population pyramid O—population statistics P—population theory Q—population studies 51. ()在业人口 ()人口密度 52. ()人口增长 ()人口年龄金字塔 53. ()城市人口 ()人口质量 54. ()人口理论 ()人口分布 55. ()待业人口 ()人口过剩 点击查看答案 第6题 What () the ...