【Daily Question No. 114】April 24, 2018

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【Daily Question No. 114】April 24, 2018: The pressure-retaining medium suitable for use in zinc oxide reactors is ( ). A. Hydrogen B. Steam C. Dry gas D. Nitrogen. 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: https://bbs.hcbbs.com/home.php?mod=space&uid=3862647&do=thread&view=me&from=space – specifically the registration-themed section and the voting thread for the “My Registration Season” event: https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1954223. The APP short-video skill competition has begun! https://bbs.hcbbs.com/forum.php?mod=viewthread&tid=1951670