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【单选题】
( )是选择一部分能反映研究对象特征的单位进行调查,如为了了解农村中学学生的流动情况,可选择学生流动较多的农村中学进行调查。A.
全面调查
B.
重点调查
C.
抽样调查
D.
个案调查
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【单选题】( 3 ) Lan guages have been coming and going for thousands of years , but in recent times there has been less coming and a lot more going. When the world was still populated by hunter - gatherers , sma...
A.
B.
C.
D.
D
【单选题】Languages have been coming and going for thousands of years, but in recent times there has been less coming and a lot more going. When the world was still populated by hunter-gatherers, small, tightly...
A.
Complex.
B.
Advanced.
C.
Powerful.
D.
Modern.
【简答题】阅读短文，根据其内容简要回答问题。 1. When the Beijing Olympics begin this August, the world will be watching. The s have become a huge international . People will come from around the world to watch 10,500 a...
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