【Daily Question】June 8, 2016: +2 wealth for participation； +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 rewards in the form of financial benefits to users. 【Daily Question】 (Single-choice question) The separation efficiency of a chromatographic column is primarily determined by ( ). A. Carrier B. Support C. Stationary liquid D. Stationary phase. Correct answer: D. Reply with your answer in the comments; participating in the quiz earns you +2 wealth points. Getting all answers correct adds another +3 to +8 wealth points. Those who provide thorough analyses and explanations for the questions or answers (or include detailed calculation processes) will receive additional wealth rewards. 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.