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    Hi, I'm Jackie. These days, my friends are talking about their own dream(理想的) houses. What about mine? My dream house has two gardens(花园). The front garden is big and has many flowers and trees. I can take a walk in it. There is a swimming pool (游泳池) in the back garden. I can swim there at any time.

    My dream house has two floors. On the ground floor (首层), there is a small hall(厅). You can see it after you walk past the front door. On the right of the hall is a wonderful living room. It looks very big. There I can talk with friends, watch TV and even have a big party. On the left, there is a computer room. The computer room is my favourite. I love computer games. I play them very well. There is also a dining room and a kitchen on the ground floor. On the first floor, there are six bedrooms, and each has a bathroom. When my friends stay with me, they can have a bath in their own rooms. There is a big bed in each bedroom. So we can have a good sleep. Well, that is my dream house. Don't you think it's wonderful?

生态城市建设是促进我国城市可持续发展的必然选择。下图表示生态城市建设面临的三条道路。K1表示生态环境质量安全警戒线，K2表示生态环境质量恶化警戒线。读图回答下列各题。

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