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三相异步电动机的转差率s＝1时，其转速为( )。A.
额定转速
B.
同步转速
C.
最大值
D.
零
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【简答题】阅读理解。 Almost all people like flowers. Some people like flowers because of their smells, shapes, colors and so on 1 . For example, red roses mean 'love' and sunflowers mean 'loyalty (忠诚)'. So people in...
【简答题】阅读理解。 Almost all people like flowers. Some people like flowers because of their smells, shapes, colors and so on. Others like flowers because they think different flowers mean different things. Flower...
【简答题】C组阅读 Kapok flowers blossom around the city of Guangzhou.docx 阅读文章回答以下问题: 1. Why are the Kapok flowers in full blossom earlier than before? ____________________ 2. Is the temperature this year higher t...
【简答题】火灾报警电话是
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