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【Daily Question No. 170】On June 19, 2017, the control criteria for the surface temperature of the furnace tubes were established based on ( ). A. The processing capacity of the heating furnace B. The properties of the crude oil C. The material of the furnace tubes D. The temperature at the furnace outlet. The reference answers will be visible after clicking back; scoring is possible by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) C grading criteria: 2 Wealth points for incorrect attempts; *incomplete* answers result in 3–8 points. 10 Wealth points are awarded for correct answers, along with detailed explanations; if additional *answers* are provided to address shortcomings, 15–20 Wealth points are given. Please use these criteria for scoring. Note: If there are editing records after answering, only points will be awarded to those who participated. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters that have nothing to do with the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updates have started) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates have started) http://bbs.hcbbs.com/thread-1657794-1-1.html 2016 Q&A Summary Thread (updates completed) http://bbs.hcbbs.com/thread-1597792-1-1.html