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【单选题】
发电机的额定容量一般用（ ）表示。A.
有功功率
B.
无功功率
C.
视在功率
D.
瞬时功率
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【简答题】When did it rain last time in Juárez? A. Three days ago B. A month ago C. A year ago.
【简答题】Janet: Well, Charles Dickens was one of the most popular novelists in 19th-century Britain. Many of his novels first appeared in magazines, in short episodes. Each one had a cliffhanger at the end tha...
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【简答题】Alex was a giraffe who lived in a zoo with his mum, dad and other giraffe friends. As Alex grew, he 1 his neck was much shorter than the others’. He began to get 2 . But his mother told him that he wa...
【单选题】They have been skating ______. [ ]
A.
for three hours ago
B.
since three hours ago
C.
three hours ago
D.
since three hours
【简答题】Robert Edwards was blinded in a traffic accident. He was also a little deaf 1 old age. Last week, he was taking a walk near his home when a thunderstorm came. He hid 2 the storm under a big tree and w...
【单选题】— When did the twins go to the aquarium? — _______. [ ]
A.
Three days ago.
B.
Next month.
C.
For four days.
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