读下图为“甲、乙、丙、丁四国城市化水平示意图”,回答31――32

读下图为甲、乙、丙、丁四国城市化水平示意图,回答31――32题。

31.图中四国城市化的共同特点是

A.城市人口不断增加       B.非农业用地不断减少

C.城市化速度趋缓          D.出现逆城市化现象

32.近年来引起丁国城市化水平变化的主要原因有

乡村基础设施的完善社会经济的发展农村剩余劳动力的转移城市中心区的萎缩

A①②      B②③      C③④       D②④

答案

AB

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