下列哪项物理检查对鉴别肺不张与胸腔积液最有价值

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SQL Error: select id,body,options from ***_enewstiku where sourceid='30573' and id < 2467260 and id<>'2467260' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30573' and id > 2467260 and id<>'2467260' order by id asc limit 5