【Daily Question】March 21, 2016 – Participate to earn +2 wealth； +3~8 points 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 offering members certain financial rewards. 【Daily Question】 (Single-choice question) Which of the following is not used in the basic operations of volumetric titration? A. Pipette B. Titration flask C. Condenser D. Erlenmeyer flask. Correct answer: C. Reply with your answer in the comments; answering correctly earns you +2 points, while getting all answers right grants an additional +3 to +8 points. Those who provide a thorough analysis or explanation of the question and answers, or include detailed calculation processes, will receive extra 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.