First of all, in terms of physiology, cities have better health conditions and security than counties. Compared with rural areas, people living in cities can not only see organic vegetables and fruits from all over the world, but also the water is processed bottled water, so that people will not be infected by foreign and wild bacteria, which greatly reduces the probability of people getting sick. When people are sick, the medical insurance that cities can provide is greater than that in rural areas. For example, no matter in the news or in life, the perfect hospital is often built near the city center. The hospital is not only a small group of people, but also the surrounding cities and villages, which is enough to show the medical security of the city.<br>
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