【单选题】
对取暖设施应进行全面检查。用火炉取暖时，应采取防止___中毒措施；加强用火管理，及时清除火源周围的易燃物；根据需要配备防风保暖帐篷、取暖器等防寒设施。
A. 一氧化氮
B. 一氧化碳
C. 二氧化碳
D. 硫化氢
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答案
B
解析
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