【Daily Question】9.20 Reply +2； To +3

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This post was last edited by zjp on 2015-9-21 at 14:50. In order to increase the popularity of the chemical analysis section, the previous 【Weekly Topic】 activity has been replaced with a 【Daily Question】 activity; this helps to foster an active atmosphere for technical exchanges while also providing members with financial rewards. 【Daily Question】 (Single-choice question) What symbol is used to denote domestically produced chemical reagents of grade 2 (analytical grade)? ( ) A. GR. B. AR. C. CP. D. LR. Correct answer: B. AR. Post your answer in the replies to participate; you will receive +2 wealth points for that. If you answer all questions correctly, you’ll get an additional +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions (or include detailed calculation processes) will receive extra wealth points as well. If your answer is correct and your analysis is accurate, it will be marked as the best reply (or the best assistance). Feel free to answer the questions. Note: We will close this post after 24 hours, and at that time we will announce the best reply (the best assistance), as well as the answer and explanation.