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【简答题】
和 的差称为转差。当三相异步电动机的转差率S=1时,电动机处于 状态,当S趋于零时,电动机处于 状态。
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举一反三
【单选题】Online love is different from off-line___________ and can raise a totally different set of problems.
A.
sister
B.
eight
C.
youth
D.
love
【简答题】Kids love to go online. There is so much to explore and learn. 小题1: The answer to the question is as difficult as determining at what age a child can be left at home by themselves, since all children ...
【简答题】轴承代号30205是（），其尺寸系列代号为02，内径为25。
【简答题】Happy Farm is an online . It is very popular among people in China. The offers you a piece of empty land and some seeds (种子) at first. You are like the farmer. If your land is small, you can ...
【单选题】Buying Online Why buy online? It's little wonder that new buyers quickly learn to love Internet shopping. At the moment, the best deals on the Web are in clothes, books, CDs, videos, flights and holid...
A.
Y
B.
N
C.
NG
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