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【Daily Question No. 166】June 15, 2017: If the supply of fresh hydrogen to the hydrogenation unit system is interrupted, which of the following phenomena may occur? ( ) A. Increased reaction depth B. Decreased purity of recycled hydrogen C. Rising system pressure D. Rising reaction temperature. The reference answers can be seen after *recovery*; scoring is possible by identifying the key points. (Unless otherwise specified, all questions and answers are based on hydrogenation units.) ) B rating criteria: 2 Wealth points for incorrect attempts; *incomplete* answers earn 3–8 points. 10 Wealth points are given for correct answers accompanied by detailed explanations; those with correct answers but incomplete supplementary *answers* receive 15–20 Wealth points. Please use these criteria for scoring. Note: If there are editing records after answering, only those who participated will be given points. For continuous malicious spamming, 2 points will be deducted each time, with no upper limit. Pure numbers, pure emojis, or random letters unrelated to the answer are all considered malicious spamming; points will start to be deducted after three warnings. 2017 Q&A Summary Thread (updates starting now) http://bbs.hcbbs.com/thread-1657793-1-1.html 2017 Daily Question Summary Thread (updates starting now) 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