Which of the following does paper bum in? A. C02 B. N2 C. He D. 02 题目和参考答案——青夏教育精英家教网—

题目内容

28.(2013 甘肃兰州，29 ) Which of the following does paper bum in?

A. C0₂ B. N₂ C. He D. 0₂

28.D

句意:纸在下列哪种物质中燃烧？（：02二氧化碳；N2氮气；He 氦气;〇2氧气。根据常识

可知答案为D项。

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