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【判断题】
同步发电机的转子型式有两种，一般汽轮发电机为显极式转子，水轮发电机为隐极式转子。
A.
正确
B.
错误
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【单选题】________ for a long time, the fields are all dried up and the farmers are worried about this year’s crops.
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【判断题】若棱镜位于非平行光路中,则要求光轴与两折射面垂直,否则,展开的平行平板玻璃将不垂直于光轴。
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【单选题】(扬州期木)The farmers were worried about the coming flood, because theyjust ___the seeds.
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have; sowed
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【单选题】原尿中的营养物质,再次进入到这些管壁周围的毛细血管内,称为 __ 。
A.
选择性回收
B.
非选择性回收
C.
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【单选题】The farmers are very worried, because a lot of crops have for lack of rain.
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【单选题】The farmers worried about the lack of rain.
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drift
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【单选题】参与真核DNA复制引发过程的酶是( )。
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【单选题】The American farmers worried that______.
A.
their horses would be replaced by the 'iron horse'
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there would be no market for their crops
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【简答题】Not many years ago, some farmers were worried because hawks were taking many of their chicken. The farmers didn’t know what to do. Finally they went to the country officials and asked for help. “Kill ...
查看完整题目与答案
【单选题】________ for a long time, the fields are all dried up and the farmers are worried about this year’s crops.
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【单选题】参与真核DNA复制引发过程的酶是( )。
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【单选题】The American farmers worried that______.
A.
their horses would be replaced by the 'iron horse'
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查看完整题目与答案