阅读材料，完成(1)～(3)题。

材料一：为走新型城镇化道路，实现区域协调和城乡统筹发展，提高城镇化质量，江苏将城镇空间结构调整为“一带两轴，三圈一极”(沿江城市带、沿海城镇轴和沿东陇海城镇轴，南京都市圈、徐州都市圈、苏锡常都市圈和淮安增长极)，以强化城镇空间集聚效应。

材料二：图1是2011年江苏城镇化水平分布和空间结构规划示意图，图2是江苏不同地区城镇化水平变化图。

若有理数m，n满足mn＞0，且m+n＜0，则下列说法正确的是（　　）

材料一：见下图北京人复原头像

材料二：北京人还保留着猿的一些体质特征，但他们已经能直立行走，上肢基本上具备了现代人的特点。手是劳动的器官，发展较快，变得灵活轻巧。下肢用来支撑身体和直立行走，发展较慢。随着四肢的分化和手的发展，脑也在缓慢地进化。

图是一个环境温度监控电路，R₁为定值电阻，R₂为用半导体材料制成的热敏电阻（电阻随温度的升高而变小）。当环境温度升高时，电流表的示数I和R₁消耗的电功率P₁的变化情况分别是（）

    Li Dong is a schoolboy. He's twelve. He lives in Beijing. He gets up at 6:30. He reads English and Chinese in the morning. He has breakfast at 7:00. In the afternoon, he has three classes. He often does the homework after dinner. Li Dong likes playing football. His mother's hobby is planting flowers. His father is interested in collecting stamps. He often shows the nice stamps to Li Dong and his mum. They like the stamps very much.