Catalytic Coking Reformate Blending Version 20181016

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Participation: Prize 1 Wealth； Correct answer: Reward of 3 wealth points ； Note: This post is valid for 48 hours. Multiple-choice question: Among salts, (　　) is the main component that causes scaling in boilers, affecting their safe operation. A. Calcium salts B. Magnesium salts C. Sodium salts D. Iron salts Answer: A. 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 (Part 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