【Daily Question】April 11, 2016 – Participate to earn +2 wealth； +3 to 8 wealth for correct answers

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To increase the popularity of the chemical analysis section, a \"One Question per Day\" campaign has been launched to foster an active atmosphere for technical exchanges while also providing financial rewards to users. 【Daily Question】 (Single-choice question) If an electrical appliance or instrument is on fire, it is not advisable to use ( ) to put out the fire. A. 1211 fire extinguisher B. Foam fire extinguisher C. Carbon dioxide fire extinguisher D. Dry powder fire extinguisher. Correct answer: B. Reply with your answer; participating in the quiz earns you +2 wealth points. Those who get all answers correct receive an additional +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions or answers, or include detailed calculation processes, will receive extra wealth points as a reward. 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.