【Daily Question】Catalytic Cracking, Coking, and Reforming Version 20170224

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To increase the popularity of this section, a daily quiz activity has been launched. The purpose of this activity is: “Learn a little bit every day, and make significant progress over ten days.” I hope everyone will participate actively; by learning and making progress, they can also easily bring wealth home :) . Participation: Prize of 5 Wealth ； Correct answer: Reward of 10 wealth points ； Note: For questions from the same day, full feedback will be given if answered on the same day; answering the next day earns 5-8 wealth points. This post is valid for 48 hours. http://bbs.hcbbs.com/static/image/hrline/4.gif Multiple-choice questions (Catalysis section): As the amount of slurry returning to the tower increases, the liquid level at the bottom of the distillation tower ( ) A. Rises B. Remains unchanged C. Falls. Correct answer: A. Petrochemicals section – “Creative Ideas for Energy Saving” campaign: http://bbs.hcbbs.com/thread-1669271-1-1.html Xiaomi phones are waiting for you to claim them