Software Engineering Economy is an effective part of software engineering, which of the following content is the research comtent of software engineering economy （）
Ⅰ．Estimation of software development cost
Ⅱ．Earn & Cost analysis of software development
Ⅲ．Adjustment of software development progress
Software engineering is the science and art of specifying, designing, implementing, and (66) with economy, timeliness and elegance, programs, (67) and operating procedures whereby computers can be made useful to humanity.
This definition implicitly sets (68) the basic goal of software engineering research and development: The basic goal of software engineering is to facilitate specification, design, implementation and evolution of programs, documentation and operating (69) which are useful to humanity in an economic, (70) and elegant manner (using the appropriate science and art).
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A large part of effective leadership is dependent on something called "style". But style is difficult to teach, and what makes one leader great and another mediocre is not easily defined. Leadership always implies power, and a broad definition in this context is that leadership includes the power to influence thoughts and actions of others in such a way that they achieve higher satisfaction and/or performance. Over the past century, there have been three major approaches to understanding leadership. Identifying leadership traits, or the physical and psychological characteristics of leaders, was the first formal approach, and had a lot of intuitive appeal. It owed its origins to the mm of the century (about 1904) when trait studies began. At this time most American leaders came from certain wealthy families, the vast majority were white ma A. better theories have since been developed B. there were too many exceptions to the rule C. it was found not to be the most important factor D. it was not proved after World War II 我来回答: 提交
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