对于管路采样式吸气感烟火灾探测器，需逐一在采样管的（ ）采样孔加入试验烟，采用秒表测量探测器的报瞥响应时间。[单选]

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SQL Error: select id,body,options from ***_enewstiku where sourceid='29216' and id < 2377579 and id<>'2377579' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29216' and id > 2377579 and id<>'2377579' order by id asc limit 5