简易呼吸器挤压一次可产生的气体1：是（  ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25721' and id < 2162772 and id<>'2162772' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25721' and id > 2162772 and id<>'2162772' order by id asc limit 5