单项选择题

25. A US physicist and his German associate were _________ for this year’s Nobel Prize in physics.
A、nominator
B、nominee
C、nominated
D、nomination

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coupling

答案： (1)
耦合的

单项选择题

三相交流异步电动机的转子铁芯一般用（）mm厚的硅钢片冲制叠压而成。
A、0.35
B、0.5
C、1.0
D、1.5