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The World Health Organization(WHO) was 1． in 1948. In the past 74 years, the WHO has greatly improved health conditions of the world, 2． in developing countries. It cures, prevents and controls serious diseases (疾病), and educates people about 3． to protect their health. It has helped 4． people by training doctors and nurses, and by teaching mothers how to take better care of their children. China is one of the first members. It offers help to the countries in need. So China has played an important 5． in dealing with the health problems.