Last Updated：2025/11/27
Sentence
研究者たちは、工業用途で承認する前に反応性と毒性を評価するためにいくつかのパラフェニレンジアミン類を試験しました。
Quizzes for review
Researchers tested several paraphenylenediamines for their reactivity and toxicity before approving any for industrial use.
See correct answer
Researchers tested several paraphenylenediamines for their reactivity and toxicity before approving any for industrial use.
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