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【单选题】
As we all know, regular exercise can be _____to health.A.
suitable
B.
harmful
C.
absent
D.
beneficial
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【单选题】A random sample of shoppers responded to the questions contained in a marketing survey. Six months later, another random sample of shoppers responded to exactly the same questions, except that the que...
A.
The reordering of the questions did not put each question in a different sequential position from its position six months previously.
B.
Shoppers who respond to a marketing survey do not generally remember six months later what responses they gave.
C.
There was no motive for the second survey except that of discovering whether the ordering of the questions mattered.
D.
The survey was not composed of questions to which shoppers would give different responses at different times of the year.
E.
The first sample of shoppers did not have any individuals in common with the survey sample of six months later.
【单选题】________ 工具是 Microsoft SQL Server 2008 提供的集成环境,这种工具可以完成访问、配置、控制、管理和开发 SQL Server 的所有工作。
A.
Microsoft SQL Server Management Studio
B.
SQL Server配置管理器
C.
Analysis Services
D.
SQL Se
【简答题】A．A great number of respondents. B．Representative sample people. C．Meaningful questions. D．Detailed information.
【单选题】Initial questions in questionnaires that screen potential respondents to ensure they meet the requirements of the sample are called ________.
A.
double-barreled questions
B.
screening or qualifying questions
C.
random questions
D.
coefficient questions
E.
requirement questions
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