Study on the corporate performance after IPO going public in different offering system.
不同发行制度下IPO公司绩效的研究。
Offering professional electrical technology, electrical power system, and technical advises of computer network etc.
从事提供专业的电力技术，电力供电系统，电脑网路技术顾问等配套服务。
Offering professional electrical technology, electrical power system, and technical advises of computer network etc.
从事提供专业的电力技术，电力供电系统，电脑网路技术顾问等配套服务。
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