第21题: [单项选择]Anna Tibaijuka (Para. 5) and Michael Mutter (para.7) seem to differ over ______. A. the benefits of urbanization. B. the process of urbanization. C. the causes of urbanization. D. the cost of urbanization. 参考答案:C 答案解析:Anna Tibaijuka认为,人们涌入城市是为了逃避饥饿和动荡,因此这样的都市化是不成熟的; Michael Mutter则认为,人们拥入城市是因为农村的承受能力已经饱和,剩余人口要另谋生路。因此