正常情况下导线每公里电导大约为(    )。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68479' and id < 4421496 and id<>'4421496' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68479' and id > 4421496 and id<>'4421496' order by id asc limit 5