【Daily Question No. 85】May 24, 2017
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Before using an oxygen respirator, it should be checked that the oxygen pressure is greater than ( ) atm. A.80 B.100 C.30 Answer: B http://bbs.hcbbs.com/static/image/hrline/4.gif HaiChuan Network’s special May Day event, “Remembering the Glorious Moments,” warmly invites your participation. http://bbs.hcbbs.com/thread-1774529-1-1.html (Source: HaiChuan Chemical Forum) Summary post for HaiChuan Network’s special May Day event, “Remembering the Glorious Moments.” http://bbs.hcbbs.com/thread-1774532-1-1.html (Source: HaiChuan Chemical Forum) First round of voting for the “Creative Ideas” event (use your mouse to influence the results). http://bbs.hcbbs.com/thread-1776507-1-1.html
Before using an oxygen respirator, it should be checked that the oxygen pressure is greater than (B) atm. A.80 B.100 C.30