题目内容
可行性研究，是以未来建设项目为研究对象，以（市场）调查研究、科学预测、定性分析和定量计算等为手段，以了解拟建项目的经济效益、社会效益为主要研究方向，如实地反映拟建项目存在的问题，并从技术、经济和社会发展的角度对项目进行考察、论证，提出解决问题的办法和方案，再对拟建项目的各种建设方案进行全面、综合地评价、比较和择优，最终作出决策的科学方法。
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By _____ computation ,he estimated that the repairs on the house would cost him a thousand dollars .
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