题目内容
下列空气间隙中,直流击穿电压最高的是( )。
2024-09-12
A.负棒-正板
B.棒-棒
C.正棒-负板
D.板-板
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68449' and id < 4418920 and id<>'4418920' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku_ where sourceid='68449' and id > 4418920 and id<>'4418920' order by id asc limit 5