题目内容
我国规定在防雷设计中采用()的波形。
2020-12-26
A.1.2/50μs
B.2.6/50μs
C.2.6/40μs
D.3.2/40us
试卷相关题目
SQL Error: select id,body,options from ***_enewstiku where sourceid='32667' and id < 2598276 and id<>'2598276' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32667' and id > 2598276 and id<>'2598276' order by id asc limit 5