对于下图所示的放射性网络，下述说法中正确的是(    )。  

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69497' and id < 4501900 and id<>'4501900' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69497' and id > 4501900 and id<>'4501900' order by id asc limit 5