端口特性为ψ=3i的二端电路元件是（）元件。

试卷相关题目

SQL Error: select id,body,options from ***_enewstiku where sourceid='32631' and id < 2594720 and id<>'2594720' order by id desc limit 5 SQL Error: select id,body,options from ***_enewstiku where sourceid='32631' and id > 2594720 and id<>'2594720' order by id asc limit 5