Chinaisagreatcountrywiththelargestpopulationinthewor...
問題詳情： Chinaisagreatcountrywiththelargestpopulationintheworld.Inordertosolvethepopulationproblem,ourgovernmentcarriedoutone﹣childpolicy（政策）before.Whenitiscarriedoutforsometime,manypeoplenotonlys...