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【单选题】
设备电气系统中引起电动机振动的原因是( )。A.
热元件烧断
B.
迎风不良
C.
联轴器轴线错位
D.
电源电压过低
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【单选题】"We sha ll go on to the end.W e shall never surrender." Who was the person who said that?
A.
Churchill
B.
Stalin
C.
Hitler
D.
Chiang Kai-shek
【简答题】Another person’s enthusiasm was what set me moving toward the success I have achieved. That person was my stepmother. I was nine years old when she entered our home in rural Virginia. My father 36 me ...
【简答题】阅读理解。 Stanley was a person who loved singing to himself in the bath. One cold winter night, he went into the bathroom to have a hot bath. He took off his clothes and turned on the tap, but there was n...
【简答题】This is Kerry Burke from New York Daily News. I'm speaking to Delroy Simmonds, an 1) Brooklyn man who missed a 2) Tuesday for the best of reasons: He was saving the life of a 9-month-old boy who was 3...
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