【Daily Question】Catalytic Coking Reformate Blending Version 20171112

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Participation: Prize of 5 Wealth； Correct answer: Reward of 10 wealth points ； Note: This post is valid for 48 hours. Multiple-choice question: Which of the following does not belong to the first-class fire hazard area? (　　) A. The process unit area where production is in progress; B. The area containing flammable materials; C. The process production unit that has been shut down for maintenance, thoroughly purged, and verified to be safe through testing and analysis; D. The area with toxic substances. Answer: C. Please take part by clicking – our ultimate goal is for everyone to acquire knowledge. 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. 【Q&A】Summary post for 2017 on the catalytic coking reformed oil blending version: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary post for 2017 on the catalytic coking reformed oil blending version: https://bbs.hcbbs.com/thread-1811219-1-1.html