药物由高浓度区域向低浓度区域转运，不需要载体和能量的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='30290' and id < 2449210 and id<>'2449210' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='30290' and id > 2449210 and id<>'2449210' order by id asc limit 5