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List of contents of this article: 1. What professional titles can be evaluated for electrical engineering and automation majors engaged in the gas industry, and what certificates should be examined? 2. What is the title or qualification of the engineer in charge of safety and engineering technology in the gas company?? 3. Engaging in natural gas

List of contents of this article: 1. What is the examination content of registered water supply and drainage engineer? 2. Where can I find the real questions of the professional examination of registered water supply and drainage engineers over the years 3, the passing rate of Shenzhen intermediate water supply and drainage examination 4, when is the primary title examination of Shenzhen water supply and drainage engineers in the examination of registered water supply and drainage engineers