【判断题】三相半波可控整流电路带电阻性负载时,晶闸管的移相范围是 0 ° ~150 °。( )
【单选题】Have you visited the house _____ the famous scientist was born?
【单选题】Have you visited the bridge ________ the workers have just finished building?
【单选题】三相半波可控整流电路带电阻性负载时,晶闸管承受的最大正向电压是( )。
【单选题】三相半波可控整流电路带电阻性负载时,每只晶闸管的最大导通角为( )。
【判断题】记账凭证中附件张数按原始凭证汇总表的张数计算,不涉及汇总的按原始凭证自然张数计算
【判断题】只顾自己的谈判基本上都是失败的谈判。()