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亲爱的同学们,在没有学习化学之前,我相信你们对一氧化碳(CO)和二氧化碳(CO_2)并不陌生,在日常生活中已经了解了很多有关二氧化碳的知识,例如
Dear Students, Before I learned chemistry, I believe you are familiar with carbon monoxide (CO) and carbon dioxide (CO2). You have learned a lot about carbon dioxide in your daily life, for example