求翻译：调查表明，中是什么意思？

The survey showed that the extremely uneven distribution of wealth in China between urban and rural, the vast majority of the distribution of wealth in the city, but the majority of the population in rural areas, the rural per capita allocation to less wealth

Research has shown that China's wealth between the urban and rural areas in very uneven wealth distribution, the vast majority in the city, but most of the population is scattered in the rural areas, so that the distribution of wealth are even less

The investigation indicated that, China's wealth is extremely non-uniform between the city and countryside distribution, the major part wealth distributed in the city, but the majority populations were distribute in the countryside, such country dweller assigned the wealth were less

Survey shows that China's very uneven distribution of wealth between urban and rural areas, most of the wealth distribution in the city, but most of the population is distributed in rural areas, rural per-capita allocation to less wealth

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