变压器差动保护不能取代瓦斯保护，其正确的原因是（   ）。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69017' and id < 4467186 and id<>'4467186' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='69017' and id > 4467186 and id<>'4467186' order by id asc limit 5