容积率指一个小区地上总建筑面积与用地面积之比；建蔽率指一个小区地上建筑面积的单层建筑面积与用地面积之比。下表为某城市四个楼盘的相关资料，城市土地开发中实施容积率、建蔽率管制的目的是（    ）

表某城市四个楼盘的相关资料

①稳定房地产价格  ②控制土地使用强度  ③提高人口密度  ④增加城市开发空间

读如图环流局部示意图，完成以下问题。

阅读文章，回答下面问题

　　Mrs. Green is the mother of two children. She is a shop assistant(店员). She is very busy every day. Every morning, she cooks breakfast for her family. She cooks eggs for her daughter and makes bread for her son. At noon she eats hamburgers in her shop. Her children have lunch in the school dining hall.

    In the evening, Mrs. Green gets home very late. When she gets home, her children get ready for dinner. Mr. Green cooks beef noodles for his daughter and cooks carrots for his son. And Mrs. Green usually buys some chicken from the supermarket. It's Mrs. Green's favourite food.

我们热爱地球上的一切生命，不仅是因为人类有怜悯之心，更因为它们的命运就是人类的命运。我们敬畏生命，也是为了更爱人类自己。 
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