简介：<正>ThemightyYangtzeRiverflowsthrough19ofChina’sprovincesandbigcities.Theriver’sdrainageareaofthe,whichaccountsfor4percentofthecountry’stotalareaandsupports4percentofitspopulation,accountsfornearly40percentofChina’sGDP.TheYangtzeisnodoubtourcountry’smostvaluableeconomiccorridor,andNanjing,asoneofthefourmajorcitiesontheYangtzeandtheonlyonestraddling
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