if people knew they would be able to convince the court or the jury of a reason for having committed the crime they are accused of, penal decisions would be largely _______. A. arbitrary B. random C. artistic D. serious
【判断题】在图( a )所示锯齿波 -矩 形波发生器中,已知 A 1 、 A 2 均为理想运算放大器,其输出电压的两个极限值为 ± 12V ; 二极管的伏安特性如图( b )所示;设振荡周期为 T ,一个周期内 u O1 为高电平的时间为 T 1 ,占空比= T 1 / T 。 判断以下结论是否正确: 振荡频率 f与 R 3 大小 有关。