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【单选题】
Jf1A4412电流系统发生接地故障时,零序电流大小取决于()。A.
短路点距电源的远近
B.
中性点接地的数目
C.
系统电压等级的高低
D.
短路类型。
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【简答题】阅读理解。 Look at this. It's a blue bag. It is my bag. What's in it? Look, this is my English book. It's blue, too. My Chinese book is also in my bag. It is yellow. This is my pencil case. It's big and ni...
【单选题】_____ bag is on the desk. Where is _____ bag? [ ]
A.
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B.
I, your
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【简答题】Look at this. It's a blue bag. It is my bag. What's in it? Look, this is my English book. It's blue, too. My Chinese book is also in my bag. It is yellow. This is my pencil case. It's big and nice. I ...
【简答题】阅读理解。 Look at this It’s a blue bag. It is my bag. What’s in it? Look, this is my English book. It’s blue, too. My Chinese book is also in my bag. It is yellow. This is my pencil case. It’s big and nic...
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【简答题】Look at this. It’s a blue bag. It is my bag. What’s in it? Look, this is my English book. It’s blue, too. My Chinese book is also in my bag. It is yellow. This is my pencil case. It’s big and nice. I ...
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