若超声表现为胆囊大、胆总管扩.张时，梗 阻部位多发生于

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31789' and id < 2541398 and id<>'2541398' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31789' and id > 2541398 and id<>'2541398' order by id asc limit 5