【Daily Question No. 104】April 14, 2018

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【Daily Question No. 104】April 14, 2018: Austenitic stainless steel will suffer from p-toluenesulfonic acid corrosion under （　　） conditions. A. Air B. Water C. Sulfides D. Air, water, and sulfides – all present simultaneously. Answer D. This question is valid for 48 hours; within that time, 10 points are awarded for a correct answer and 2 points for an incorrect one ； If the response is given after 48 hours, the score is halved, regardless of whether it is correct or not ； Mass posting of posts – rated based on the lowest score ； Replies that are unrelated to the answer are considered spam and will be deleted immediately. For management purposes, if you need to view content from a few days ago, please go to the link below to access https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space – the dedicated section for registered users, specifically the voting thread for the “My Registration Season” event: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1954223. The APP video series and skill competition have now begun! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670