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【单选题】
引起抽样误差的原因是A.
测量过程中仪器不准确
B.
违反随机原则而产生的误差
C.
个体差异
D.
调查过程中观察差错引起的误差
E.
主观因素的原因
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举一反三
【单选题】知识信息的爆炸式增长是信息时代的突出特征,在信息泛滥的信息时代,我们不仅要具备如何快速搜索出自己所需要信息能力,还应具备( )
A.
如何完成信息传播的能力
B.
如何辨别这些信息真伪能力
C.
如何完成信息的收集、整理和加工的能力
D.
如何阅读信息的能力
【单选题】In which ways is home service industry good for our society?
A.
It meets the needs of modem life.
B.
It provides work opportunities for the laid-off workers.
C.
It is a new industry.
D.
Both A and B.
【单选题】In which ways is home service industry good for our society?
A.
It meets the needs of modern life.
B.
It provides work opportunities for the laid-off workers.
C.
It is a new industry.
D.
Both A and B
【单选题】Great ________ should be made to speed up higher education to meet the needs of industry and agriculture.
A.
measures
B.
goals
C.
efforts
D.
effects
【单选题】In which ways is home service industry good for our society?
A.
It meets the needs of modern life.
B.
It provides work opportunities for the laid-off workers.
C.
It is a new industry.
D.
A and B.
【多选题】韵母发音错误主要包括以下类型(多选)
A.
单韵母复音化与复韵母单音化
B.
前后鼻韵母相混
C.
前鼻韵母读作以i做韵尾的复韵母
D.
单元音韵母发音时,舌位和唇形始终不变
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