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【单选题】
在中性点直接接地系统中，发生单相接地故障时，非故障相的对地电压将（）。A.
不会升高
B.
升高不明显
C.
升高3倍
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反馈参考答案：
举一反三
【简答题】常用的打桩桩锤类型有落锤、气锤、____、____和液压锤等。
【单选题】How did Binet decide which tasks to include on his first test?
A.
He first gave some of the tasks to different groups of children.
B.
He first gave the tasks to many children he thought appropriate.
C.
He first gave all the tasks to many children regardless of their age.
D.
He first worked out thirty tasks for mentally deficient children.
【简答题】( Not received)______ any formal education in medicine, he could not cope with his tasks in our hospital.
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