火灾自动报警系统的使用单位必须制定严格的系统管理制度。()
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在救人灭火步骤上，根据火场情况，有时先救人后灭火，有时为了救人先灭火，有时救人与灭火同时进行。()
Youve been told that your best roommate Zhichao in senior high school, who is studying in
灭火器中代号为MTT，其代号含意为推车式干粉灭火器。()
Write a letter to the Office of Property Management of your community, to give your advice
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