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【单选题】
在正常负荷电流下,流入电流保护测量元件的电流,以下描述正确的是( )。A.
电流互感器接型 I φ
B.
电流互感器接成三角形接线时为 I φ
C.
电流互感器接相差接0
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【简答题】按要求改写句子。 1. A: ___________________________________________________________? B: Yes, Dave is visiting his uncle.（完成疑问句） 2. does, take, how long, get, to, from, to, home, it, school, you（连词成句） _________...
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【简答题】听一段对话，回答1-2小题。 1. Where did Dave go? A. Beijing. B. Tianjin. C. Shanghai. 2. Who did Dave go with? A. His parents. B. His farther. C. His mother.
【简答题】A．Dave will never listen. B．She doesn't know Dave. C．She thinks Dave is insane. D．She thinks Dave will listen one day.
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