在计算距离Ⅱ段保护定值时，分支系数Kb应取（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69518' and id < 4503703 and id<>'4503703' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69518' and id > 4503703 and id<>'4503703' order by id asc limit 5