下列何结构承接经肾乳头排出的尿液

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='31776' and id < 2540537 and id<>'2540537' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='31776' and id > 2540537 and id<>'2540537' order by id asc limit 5