男性，28岁。间断性右下腹疼痛,进餐后 加重，伴腹泻,糊状便，无脓血及黏液。查体:右 下腹可及包块，部位较固定。最有价值的检查是

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SQL Error: select id,body,options from ***_enewstiku where sourceid='31934' and id < 2553727 and id<>'2553727' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31934' and id > 2553727 and id<>'2553727' order by id asc limit 5