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【单选题】
如果电气工作人员触及虽己从电网断开但未进行放电的电容器，就可能被电击或电灼伤。为了防止带电荷合闸及防止人身触电伤亡事故，电容器组必须加装（）装置。A.
分路电阻
B.
放电
C.
继电保护
D.
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【简答题】阅读理解 Helen Keller was a US author and public speaker who became blind and deaf at the age of 19 months. Anne Sullivan became her teacher in 1887 and taught her to read, write, use sign language and sp...
【简答题】配电线路按线路分布情况分为放射式、树干式、() 三类。
【简答题】Helen Keller was born in America in June, 1880. Everything was all right when she was born. But when she was 19 months old, an attack of fever left her blind and deaf for the rest of her life. She was...
【简答题】[ A] differently [ B ] happily [ C ] sadly [ D] excitedly
【判断题】When Helen Keller was born, she was deprived of the ability to see and hear.
A.
正确
B.
错误
【简答题】Helen Keller was a US author and public speaker who became blind and deaf at the age of 19 months. Anne Sullivan became her teacher in 1887 and taught her to read, write, use sign language and speak. ...
【简答题】翻译句子: Helen Keller was born in the U.S.
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