下列作业中主要可接触到硫化氢气体的是(  )A.喷漆B.制造灯管C.下水道疏通、造纸D.电镀E.贵重金属的提炼

作者: rantiku 人气: - 评论: 0
问题 下列作业中主要可接触到硫化氢气体的是(  ) A.喷漆 B.制造灯管 C.下水道疏通、造纸 D.电镀 E.贵重金属的提炼
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答案 C
解析

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