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刘某是否有权要求方某返还自己的2400元修理和装修费？为什么？

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You are to write in no less than 120 words about the title "Vocational Training Vs. Humanities". You should base your composition on the outline given in Chinese below:
(1) 高等教育一个新现象是人文科学遇到冷落，而专业性强的学科受到青睐。
(2) 引起这一现象的原因。
(3) 我的看法。

阅读下列说明以及图3-1和图3-2，回答问题1、问题2和问题3。
[说明]
下面是某公司开发的电梯管理系统，系统功能如下：
1．响应用户召唤指令。当用户需要电梯时可以通过按楼层面板召唤。
2．进入电梯后，乘客可以通过电梯面板选择目的楼层。
3．当电梯到达调度楼层后，判断是否响应停止运行，开启电梯门，完成调度。
4．当电梯到达非调度楼层时，不作响应，继续运行。
5．乘客在电梯中能够知道电梯的运动状态，如运动方向、电梯运行到的楼层等。
6．电梯超载报警。
系统采用面向对象方法进行开发。在开发过程中某设计室设计的电梯管理系统用例如表9-4所示。电梯管理系统用例图如图9-4所示。
根据说明，回答下面问题：
仔细分析系统的用例说明和用例图，从功能要求角度来看，该系统的用例并不完善。请根据功能要求补充至少两个用例，并作简单说明。

SELEC(1)
FROM(2)
WHERE(3)

Time, Newsweek, and U. S. News & World Report are popular newsmagazines. The present national and international news, stories of human interest, and reports on new books, movies, plays, sports events, fashions, foods and so on are included. The articles are written in an informal style, and they are illustrated with photographs. More than nine million people read newsmagazines regularly. Two picture magazines Life and Look enjoyed popularity for many years. They presented the news with simple texts and many photographs, and they remained among the most widely read magazines until the late 1960s. Some people think these picture magazines were forced out of business because they could not compete successfully with the live pictures on televised news programs. Today there are approximately 1 750 daily newspapers, with a total circulation of over 62 million and more than 580 Sunday papers, with a circulation of almost 60 million.