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Participation: Reward of 3~5 Wealth points; Correct answer: Reward of 10 wealth points ; Note: This post is valid for 48 hours. Multiple-choice question: The three elements of combustion are ( ). (A) Fuel, oxidizer, heat (B) Fuel, oxygen, ignition source (C) Fuel, oxidizer, ignition source (D) Fuel, oxygen, ignition source Answer: C 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 Post on Catalyst Coking and Reforming Oil Blending for 2017: https://bbs.hcbbs.com/thread-1826018-1-1.html 【Daily Question】Summary Post on Catalyst Coking and Reforming Oil Blending for 2017: https://bbs.hcbbs.com/thread-1811219-1-1.html
(C) Combustibles, oxidizers, ignition sources
(C) Combustibles, oxidizers, ignition sources
C) Combustibles, oxidizers, ignition sources
(C) Combustibles, oxidizers, ignition sources
The three elements of combustion are (C). (A) Fuel, oxidizer, heat (B) Fuel, oxygen, ignition source (C) Fuel, oxidizer, ignition source (D) Fuel, oxygen, ignition source
(C) Combustibles, oxidizers, ignition sources