单词:El Fud
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America's population is becoming older and increasingly diverse - made up of people who are different from each other. Nowhere are those differences more apparent than in Houston, Texas. The city has seen an increase in the number of minority communi
Despite Paralysis, Hawking's Mind Soars When he turned 70 in 2012, Hawking was honored with a special exhibit at Londons Science Museum. The tribute gave visitors an inside look at the life and work of one of the world's greatest minds. We have some
Pareto's Principle - The 80-20 Rule How the 80/20 rule can help you be more effective. In 1906, Italian economist Vilfredo Pareto created a mathematical formula to describe the unequal distribution of
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
Obama secures majority of Latino votes: polls HOUSTON, Nov. 7 (Xinhua) -- Latino-Americans voted for President Barack Obama over Republican candidate Mitt Romney 71 percent to 27 percent in Tuesday's U.S. presidential election, according to an analys
Latest figures show, the number of people in their working-age decreased by over 3 million in 2012, accounting for some 69 percent of China's total population. Ma Jiantang, director of State Statistical Bureau, warns this is a serious issue. It is th