行胆雍超声检査应在检査前多长时间禁食(    )

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='26323' and id < 2201272 and id<>'2201272' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='26323' and id > 2201272 and id<>'2201272' order by id asc limit 5