None of the shoes in the shops are the r

某小区2011年绿化面积为2000平方米，计划2013年底绿化面积要达到2880平方米．如果每年的增长率相同，那么这个增长率是__________________．

如图，在△ABC中，∠C=90°，∠A的平分线交BC于D点，BC=21cm，BD：DC=4：3，则点D到AB的距离为（    ）。

阅读以下材料，回答问题。

材料一 （1912年）2月13日，孙中山认为“帝制从此不存留于中国之内，民国的目的亦已达到”，遂向参议院请辞临时大总统，并推荐说：“清帝退位，南北统一，袁君之力实多。”——《中国革命纪录》

材料二 “中国现在祸乱的根本，就是在军阀和那援助军阀的帝国主义者，我们这次来解决中国问题，在国民会议席上，第一点就是要打破军阀，第二点就是要打破援助军阀的帝国主义者。”——1924年孙中山《国民革命为解决中国内乱之法》的演说

材料三 “我已嘱咐国民党进行民族革命运动之工作，俾中国可免帝国主义加诸中国的半殖民地状况之羁缚。为达到此项目的起见，我已命国民党长此继续与你们提携。”——1925年3月孙中山《致苏联遗书》

（1）根据材料一，概括孙中山辞职的原因。结合材料和所学知识，你如何看待孙中山的辞职？

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（2）材料二中孙中山认为当时中国“祸乱的根本”是什么？与材料一相比孙中山在思想认识上有怎样的变化？孙中山的这一演说与中 * * 党哪一次会议的主张基本一致？

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（3）为了这场“民族革命”，孙中山在他生命的最后两年里，对救国道路的探索有何重大发展？试从主张和实践两个方面加以阐述。促成孙中山这些重大发展的原因有哪些？

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Solving a problem can be broken down into several steps. First, the problem must be identified correctly. Psychologists refer (1) this step as problem representation. For many problems, figuring (2) which information is relevant and (3) is extraneous can be difficult and can interfere (4) arriving at a good solution. Clearly, before a problem can be solved, it must be obvious (5) the problem is, however, this is not as easy (6) it might seem. One obstacle to efficient problem representation is functional fixedness, that is, allowing preconceived notions and even prejudices (7) color the facts. Most people tend (8) see objects and events in certain fixed ways, and by being inflexible in viewing the problem, they may be unable to notice the tools (9) the solution. Once the problem is identified accurately, (10) , the second step consists (11) considering the alternatives for a solution. A common way to evaluate alternatives is to write them (12) and then make a list (13) advantages and disadvantages for each solution. Here again, people may be limited by prior experiences. Often people adopt mental sets (14) lead them to the same problem-solving strategies that were successful for problems (15) the past. Although that can be helpful most (16) the time, sometimes a new situation requires a different strategy. (17) that case, the mental set must be abandoned, (18) new alternatives must be explored.
After the alternatives have been compared, a strategy must be selected (19) among them. One way to avoid becoming mired in the options is (20) try the best option with a view to abandoning it for another (21) the results are unfavorable. This attitude allows many people to move on expeditiously (22) the next step—action. The strategy selected must be implemented and tested. If it solves the problem, no further action is necessary, but if (23) , then the cycle begins again, starting (24) problem identification. By continuing to review the problem (25) repeat the problem-solving steps, the solution can be improved upon and refined.

Excel表格处理操作
考试要求：
(1)将标题字体设为“楷体”，24磅，加粗，置于表格正上方。
(2)计算每个学生的总成绩和平均成绩，分别放入总成绩和平均成绩栏中，平均成绩保留一位小数。
(3)为表格添加边框线，外框线为粗线，内框线为细线。