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【单选题】
当两只单相电压互感器按V，v接线，二次线电压Uab=100V，Ubc=100V，Uca=173V，那么可能是电压互感器（）。A.
二次绕组AC相极性接反
B.
二次绕组B相极性接反
C.
一次绕组AC相极性接反
D.
无法确定
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【简答题】It was a Saturday morning in May. When Mrs. Green opened her windows and looked out, she said, “It's going to be a beautiful day.” She said to her son, “Get up, Tom. We are going to the zoo today. Was...
【单选题】Tom looked very much ______ when he was caught cheating in the English examination.
A.
embarrassed
B.
disappointed
C.
bewildered
D.
discouraged
【单选题】Tom looked very much embarrassed when he was caught cheating in the exam ________ the spot.
A.
on
B.
by
C.
at
D.
in
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