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【简答题】
异步电动机的旋转磁场方向与通入定子绕组中三相电流的()有关。异步电动机的转动方向与旋转磁场的方向()。旋转磁场的转速决定于旋转磁场的()。
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反馈参考答案：
举一反三
【简答题】阅读材料——做好”深圳质量“这篇大文章，回答下面2个问题： 1，从”深圳速度“向”深圳质量“转变，意味些什么？ 2，深圳的转变尝到了哪些甜头？ 要求：每一题回答字数不少于200字，不得直接粘贴复制题干材料文字内容。
【单选题】At this forum, students discussed topics such as lowering the legal drinking age and increasing the age at which one would be________ to obtain a driver’s license.
A.
eligible
B.
excessive
C.
exclusive
D.
evident
【单选题】听力原文：Although I myself am not interested in investment, recently, topics such as buying shares and the stock market are a source of heated discussion among my friends. (22)
A.
My friends try to persuade me to invest in the stock market.
B.
My friends talk a lot about investing in the stock market.
C.
My friends say that investing in the stock market is crazy.
D.
My friends and I have different opinions about the stock market.
【简答题】种子纯度检验的方法有哪几类?其优缺点有哪些?
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