下列有关蛋白质结构和功能的说法正确的是

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21839' and id < 1908097 and id<>'1908097' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='21839' and id > 1908097 and id<>'1908097' order by id asc limit 5