氨由肌肉组织通过血液向肝进行转运的机制是（    ）

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='27519' and id < 2271239 and id<>'2271239' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='27519' and id > 2271239 and id<>'2271239' order by id asc limit 5