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Participation: Prize 1 Wealth； Correct answer: Reward of 3 wealth points ； Note: This post is valid for 48 hours. Single-choice question: Regarding the importance of gas-tightness testing for reactors, which of the following statements is incorrect? ( ) A. Because leaks may occur after the reactors and other components’ covers as well as various flanges are reinstalled during major repairs. B. Leaks can be detected promptly through airtightness testing, thereby eliminating potential hazards. C. To ensure the long-term operation of the facility. D. To prevent high pressure from leaking into low pressure areas. Answer: D. 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. “My Device, My Home – Large-scale Original Photo Sharing Event (Phase 2): https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1868167&extra=page%3D1 【Q&A】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary of Catalyst Coking and Reforming Oil Blending Data for 2017–2018~~Continuously being updated: https://bbs.hcbbs.com/thread-1811219-1-1.html