三相桥式半控可控整流电路中,-般都用三只二极管和三只晶闸管。( )
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KC4IC仅与三块KCO04组成三相全控桥双脉冲触发电路,还具有低电平有效中封锁功能。( )
A. 对
B. 错
选词填空embracedefinitelyyieldcomplementmottoprofessionillustrateachievementA higher-rate deposit account ________ better returns.
选词填空embracedefinitelyyieldcomplementmottoprofessionillustrateachievementHis illness has been diagnosed _________as cancer.
选词填空embracedefinitelyyieldcomplementmottoprofessionillustrateachievementShe finally ________ my offer to go to hospital and take a physical examination.