题目内容
提高气体间隙击穿电压的措施有( )。
2020-11-27
A.改善电场分布使电场变的均匀
B.釆用高气压
C.釆用高真空
D.釆用髙材料强度的气体
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='32602' and id < 2592376 and id<>'2592376' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32602' and id > 2592376 and id<>'2592376' order by id asc limit 5