转向桥是利用（）使车轮可以偏转一定角度，以实现（）。
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New Zealand is the first country in the world to get the new day because（）
A. it is just east of the International Date Line
B. it is just west of the International Date Line
C. it is located halfway between the equator and the South Pole
D. it is located in the Southern Pacific Ocea
卧式风分器下体中的输烟网带的结构形式是采用的（）式。
由于发电机磁通的不对称，产生轴电压的主要原因是什么？
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