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【Daily Question】Hydrogen production and hydrogenation technology version 20191129

2019-11-29View Original

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Participation: Prize 1 Wealth; Correct answer: Reward of 3 wealth points ; Note: This post is valid for 48 hours. https://bbs.hcbbs.com/static/image/hrline/2.gif True or False: When a cooler is put into operation, cooling water is usually introduced first, followed by the heat transfer medium. (  ) Answer: Correct. Your participation is the greatest support for our work. Giving roses to others leaves a pleasant fragrance in one’s own hands. https://bbs.hcbbs.com/static/image/hrline/1.gif https://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be released automatically after two days.

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