单词：urban density gradient law
单词：urban density gradient law 相关文章
THIS IS AMERICA - Social Scientists Rethink City Living SHIRLEY GRIFFITH: Welcome to THIS IS AMERICA in VOA Special English. I'm Shirley Griffith. STEVE EMBER: And I'm Steve Ember. This week on our program, we tell you why an economist has written a
2011年VOA慢速英语(十二)月
Todd: So, Shifani, you are an expert in urban planning, and more specifically, in transport. What do you envision in the future, let's say, in fifty years from now? Shifani: Fifty years from now is quite a long time to project, but future cities woul
原版英语对话1000个
Kurt Achin It is rainy season in Southeast Asia, and the region is facing its annual battle with dengue fever and other mosquito-borne diseases. The World Health Organization says such diseases are a
VOA2004（上）--国际时事
Social Scientists Rethink Role of City Big cities are vibrant hubs for culture and industry, or dirty, congested, impersonal crime-ridden warrens. As the world population surpasses seven billion, economists, environmentalists and social scientists ar
VOA标准英语2011年(十二月)
Nations predicts that number will rise to 70 percent by 2050. Urban health challengesHealth researchers, practitioners, policymakers and academics from 45 countries came to the New York Academy of Medicine to discuss a wide and growing array of urban
VOA标准英语2010年(十一)月
population studies 人口研究 demography 人口学 demographer 人口学家 population theory 人口理论 Malthusianism 马尔萨斯主义 neo-Malthusianism 新马尔萨斯主义 overpopulation 人口
英文语法词汇