【Weekly Question】Participate from 4/17 to 4/23, 2017 for +2 wealth； +3 to +10 wealth for correct answers

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To increase the popularity of the chemical analysis section, a \"Question of the Week\" campaign has been launched to foster an active atmosphere for technical exchanges while offering rewards in the form of financial benefits to users. 【Weekly Question】Multiple-choice question: Which of the following analytical and testing procedures is correct? （） (A) Place the volumetric flask on an electric stove to heat it. (B) When using a measuring cylinder to take liquid, keep your line of sight level with the lowest point of the meniscus in the cylinder. (C) During neutralization titration, if there are bubbles at the tip of the burette after adding the solution, it is not necessary to remove them. (D) If liquid reagents are not used up, pour them back into the original container to save chemicals. Answer: B. Post your answer in the replies; participating in the quiz earns you +2 wealth points. Getting all answers correct adds another +3 to +8 wealth points. Those who provide thorough analysis and explanations for the questions or answers (or include detailed calculation processes) will receive additional wealth points as a reward. If your answer is correct and your analysis and explanation are accurate, it will be marked as the best reply (or best assistance). Feel free to answer the questions.