【Daily Question No. 054】2017.08.30

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【Daily Question No. 054】August 30, 2017: A low ( ) level of oxygen leads to hallucinations, easy fatigue, and a reduced response to pain. (A) 10-14% (B) 6-10% (C) Less than 6% (D) 14-21% The reference answer will be visible after responding; points can be earned by identifying the key points. The way answers are displayed is about to change. Answer: A. Summary thread of Q&A questions from 2017 (updates have begun): http://bbs.hcbbs.com/thread-1657793-1-1.html. Summary thread of daily questions from 2017 (updates have begun): http://bbs.hcbbs.com/thread-1657794-1-1.html. Summary thread of Q&A questions from 2016 (updates completed): http://bbs.hcbbs.com/thread-1597792-1-1.html. Petrochemical industry section – “Creative Ideas for Energy Saving” campaign (the second phase is currently in progress): http://bbs.hcbbs.com/thread-1666758-1-1.html. (Source: Haichuan Chemical Industry Forum Website)