支气管哮喘患者呼气比吸气更为困难，其原因是 （      ）

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SQL Error: select id,body,options from ***_enewstiku where sourceid='25938' and id < 2179560 and id<>'2179560' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='25938' and id > 2179560 and id<>'2179560' order by id asc limit 5