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【单选题】
电流互感器的不完全星形接线，在运行中（）。A.
不能反应所有的接地故障
B.
对相间故障反应不灵敏
C.
对反应学相接地故障灵敏
D.
对所有接地故障反映灵敏
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反馈参考答案：
举一反三
【简答题】在纱穗成形时，每一升降过程由两层纱组成，即（）卷绕层和束缚层。
【单选题】Now the world’s attention ________ the stock markets，as they have a great influence on the world’s economy.
A.
is fixing on
B.
has fixed on
C.
is being fixed on
D.
had been fixed on
【简答题】From the world’s heaviest apple, the oldest lady to the world’s smallest dog, these are all parts of a group of the world’s strangest people and things. And they are all in the Guinness Book of Record...
【简答题】卷绕层/束缚层
【单选题】EMI is ______.
A.
the world's first major music company
B.
the world's third largest record company
C.
the world's largest on -line music provider
D.
the world's largest software company
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