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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/1.gif http://bbs.hcbbs.com/static/image/hrline/2.gif Note: The answers will be announced in two days. Fill-in-the-blank: The hazards of liquefied petroleum gas, fires and explosions, , hazards. Answer: Frostbite, poisoning. Petrochemical areas – “Creative Ideas for Energy Savings” campaign (the second phase is currently in full swing): http://bbs.hcbbs.com/thread-1666758-1-1.html. “My Technical Upgrades in the Coal Chemical Industry” in 2017: http://bbs.hcbbs.com/thread-1786290-1-1.html. [Daily Question] Summary post on catalytic coking and reformed oil blending for 2017: http://bbs.hcbbs.com/thread-1811219-1-1.html
Fill-in-the-blank: The hazards of liquefied petroleum gas include fire and explosion, easy boiling and overflowing, easy flow and spread, and the risk of generating static electricity.