煤气里混入的有刺激气味的气体是什么?
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![煤气里混入的有刺激气味的气体是什么?](/uploads/image/z/3341737-1-7.jpg?t=%E7%85%A4%E6%B0%94%E9%87%8C%E6%B7%B7%E5%85%A5%E7%9A%84%E6%9C%89%E5%88%BA%E6%BF%80%E6%B0%94%E5%91%B3%E7%9A%84%E6%B0%94%E4%BD%93%E6%98%AF%E4%BB%80%E4%B9%88%3F)
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