患者，40岁。高热、寒战3天，伴咳嗽，胸痛，痰中带血。为确诊，应首选的检查方法是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='28710' and id < 2341712 and id<>'2341712' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='28710' and id > 2341712 and id<>'2341712' order by id asc limit 5