电力系统实时动态监测系统主站分析电网扰动识别的时间应不大于（ ）s。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='29465' and id < 2399170 and id<>'2399170' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='29465' and id > 2399170 and id<>'2399170' order by id asc limit 5