Diets have changed in China — and so too has its top crop. Since 2011,the country ___61___ （grow）more corn than rice. Corn production has jumped nearly 125 percent over___62___ past 25 years, while rice has increased only 7 percent. A taste for meat is ___63 ___ (actual) behind the change: An important part of its corn is used to feed chickens, pigs, and cattle. Another reason for corn&39;s rise: The government encourages farmers to grow corn instead of rice ___64 ___(improve) water quality. Corn uses less water ___65___rice and creates less fertilizer(化肥) runoff. This switch has decreased___66___(pollute) in the country&39;s major lakes and reservoirs and made drinking water safer for people. According to the World Bank, China accounts for about 30 percent of total ___67___(globe)fertilizer consumption. The Chinese Ministry of Agriculture finds that between 2005—when the government ___68___(start) a soil-testing program ___69___gives specific fertilizer recommendations to farmers - and 2011, fertilizer use dropped by 7.7 million tons. That prevented the emission(排放) of 51.8 million tons of carbon dioxide. China&39;s approach to protecting its environment while ___70___(feed) its citizens "offers useful lessons for agriculture and food policymakers worldwide." says the bank&39;s Juergen Voegele. 61_________ 62 63 64 65 66 67 68 69 70 请帮忙给出每个问题的正确答案和分析，谢谢！