轻型直流输电主要采用（ ） 器件。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32679' and id < 2599526 and id<>'2599526' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32679' and id > 2599526 and id<>'2599526' order by id asc limit 5