【毎日一題 第336題】2019年12月3日
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【毎日一題 第336題】2019年12月3日 すべてのアルデヒドはイオウフェノール反応を起こす。 判断問題（） 2日以内に解答してください。
すべてのアルデヒドはイオウフェノール反応を示す。（X）
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