题目内容
感抗和容抗的大小都与电源的频率成正比。( )
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68474' and id < 4421110 and id<>'4421110' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68474' and id > 4421110 and id<>'4421110' order by id asc limit 5