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【单选题】
《焦点访谈》是中央电视台收视率最高的栏目之一。经改栏目曝光,很多悬而未决的维权事件迎刃而解。这体现出( )。A.
新闻媒体是公民行使监督权的有效途径
B.
新闻曝光对违法行为的打击比法律更有效
C.
我国公民的批评建议权是公民最重要的权利
D.
新闻监督是公民行使批评建议权最快捷、影响最大，也是唯一的渠道
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举一反三
【单选题】Which one of the following statements is true?
A.
Secondary data are data collected especially for a specific purpose
B.
If a sample is selected using random sampling, it will be free from bias
C.
In cluster sampling there is very little potential for bias
D.
Discrete data can take on any value
【判断题】The main purpose of probing during fieldwork is to ensure that fieldworkers strictly follow the sampling plan rather than select samples based on their own convenience.
A.
正确
B.
错误
【单选题】Once you have a well-defined purpose for your study and a clear description of the kinds of outcomes you want to achieve, the next step in your research design is
A.
population and sampling.
B.
choice of research method.
C.
conceptualization.
D.
operationalization.
E.
conducting a literature review
【判断题】Purpose of sampling is to estimate an unknown characteristic of a population.
A.
正确
B.
错误
【简答题】函数功能:用冒泡法对数组a 进行由小到大的排序。 #include void fun(int a[],int n) { int i,j,t; /***********SPACE***********/ for (j=0;【?】;j++) /***********SPACE***********/ for (i=0;【?】;i++) /***********SPACE***********/ if...
【多选题】Regarding data reduction, which of the following are true?
A.
The purpose of data reduction is to reduce the data mining time.
B.
Attribute subset selection is an approach of dimensionality reduction.
C.
Data reduction techniques use a smaller dataset to replace the original dataset.
D.
Sampling is a data reduction technique.
【简答题】何园清代楠木厅叫什么名字?典出哪里?体现了园主人什么思想?
【单选题】________ is the testing of the questionnaire on a small sample of respondents for the purpose of improving the questionnaire by identifying and eliminating potential problems before using it in the ac...
A.
Precoding
B.
Pretesting
C.
Sampling
D.
Encoding
E.
Consolidation
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