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onal economy as a whole. In a word, the housing reform is beneficial to both individuals and the whole society. 圖表作文,關(guān)于一個(gè)美國(guó)大學(xué)圖書館的圖書流動(dòng)量 ,給出他們的流動(dòng)比例對(duì)比,說(shuō)明原因,并說(shuō)明你自己喜歡閱讀什么樣的書。 0204060801960 1990 During the period from 1960 to 1990, the life expectancy of developing countries rose from 40 years to nearly 60 years, while infant mortality decreased from 200 deaths per1,000 births to around 100. We believe that three reasons can account for this phenomenon. First, economy develops quickly in developing countries during this period, and living quality improves significantly as a result. Second, people’s health conditions also bee better and better with the development of national health care system. When they bee richer and richer, they care more about personal health conditions. Third, medical science also develops at a fantastic speed, and it is much safer for mothers to give birth. We are happy to see that things are being better and better nowadays. We can i