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(阅读下面的材料。回答下面的问题。)材料一：中学生冯某等人，经常上网，由于受不良内容吸引，上网成瘾，在没钱上网时就偷盗、勒索其他同学的钱财。材料二：下表是一项对中学生到网吧上网情况的调查统计。调查项目每周上网时间上网的主要原因浏览过不健康网站10小时以上28小时以上查资料聊天玩游戏人数比率79%1.2%3%15%82%46%材料三：为帮助广大青少年学生增强网络安全防范意识，引导广大青少年文明上网，使网络真正成为青少年学习知识、交流思想的工具，国家有关部门先后发布了《全国青少年网络文明公约》和《关于加强网络文化市场管理的通知》。回答下列问题： 材料一、材料二中的上网行为会对中学生产生什么影响？
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(一) 中国共产党第十七届中央委员会第五次全体会议于2010年10月15日至18日在北京举行。全会一致通过了《中共中央关于制定国民经济和社会发展第十二个五年规划的建议》。全会指出，加快转变经济发展方式，开创科学发展新局面。“五个坚持”就是五条脉络，来实现经济社会又快又好发展。今后五年经济社会发展的主要目标是：经济平稳较快发展，经济结构战略性调整取得重大进展，城乡居民收入普遍较快增加，社会建设明显加强，改革开放不断深化，使我国转变经济发展方式取得实质性进展，综合国力、国际竞争力、抵御风险能力显著提高，人民物质文化生活明显改善，全面建成小康社会的基础更加牢固。 请回答以下各题： 加快转变经济发展方式的基本要求就是“五个坚持”，包括：坚持把经济结构战略性调整作为加快转变经济发展方式的主攻方向；坚持把科技进步和创新作为加快转变经济发展方式的重要支撑；( )
Section ADirections: This section is to test your ability to give proper answers to questions. The question will be spoken two times. When you hear a question, you should decide on the correct answer from the 4 choices.
患者，腰部酸软而痛，反复发作已2年，局部喜按喜揉，遇劳则甚，面色白，手足不温，舌淡，脉沉细。方选
We are going to describe one way to build a rooftop garden that does not even require soil. Four things are needed for a small rooftop garden. One thing is a roof that can support the weight, another is grass cutting. The third thing is a sheet of plastic in which to spread the cut grass. And the last thing is a box about eight centimeters deep and made out of four pieces of wood. Once you are sure the roof is good cut and collect some grass. Then lay down the plastic where the garden box will go. The four-sided box can be as long and as wide as needed. Place the box on top of the sheet of plastic. Then fill it with the cut grass. Next add water and walk on the cuttings to press them down. After about three weeks, the rooftop garden is ready for planting. Put the seeds directly into the wet grass cuttings. This garden is a good place to grow peas, tomatoes, beans, onions and lettuce. If the box is deep enough, potatoes and carrots will also grow. It is important to keep the grass wet until the plants begin to grow. When the plants are growing, they will need watering every day, unless there is rain. And they will need some liquid fertilizer. Also, seeds and new plants must be protected from insects and birds. Rooftop gardens are increasingly popular, and not just to grow vegetables. They keep buildings cooler in the sun, so they save energy. They can also extend the useful life of a roof. Rooftop gardens also reduce the runoff of storm water and help clean the air. Plus they add beauty, and give birds and insects in the city a nice place to live. Four things are needed for a small rooftop garden. One thing is a roof that can ______.
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