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【单选题】
噪声可以分为气体动力噪声，机械噪声和( )。A.
电力噪声
B.
水噪声
C.
电气噪声
D.
电磁噪声
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反馈参考答案：
举一反三
【简答题】超限、超重车应经由（）运输，但受到建筑限界或其他不利因素影响时，可指定径路绕道运输。
【单选题】During many sectors are foundering, the $ 21 billion videogame-software industry is booming, adding game developers at a rate of 2,500 a year in the United States alone.
A.
When
B.
Whereas
C.
Would
D.
While
【简答题】Made in the USA: An Export Boom In his State of the Union address two years ago, President Obama argued that in order to recover from the economic recession, one of the few things the U．S. needed to d...
【简答题】Made In The USA: An Export Boom In his State of the Union address two years ago, President Obama argued that in order to recover from the economic recession, one of the few things the U．S. needed to d...
【简答题】平面的质量主要从 和 两个方面来衡量。
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