单选题
The process of urbanization has caused many problems, the major one is ______.
【正确答案】
B
【答案解析】此题考查句意理解、细节定位。略读文章，发现在第2段中有These are areas of poverty，slums...The international community has been too slow to recognize the growth of urban poverty，注意下划线部分，综合分析，选B为答案。