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【单选题】
设备所用的润滑剂、冷却剂等不得对药品或容器造成污染,应当尽可能使用 ( )。A.
食用级或级别相当的润滑剂
B.
分析级或级别相当的润滑剂
C.
化学级或级别相当的润滑剂
D.
药用级或级别相当的润滑剂
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【单选题】A research team intend to collect data via online questionnaires, the research method seems to be ( ).
A.
Qualitative research on first-hand data
B.
Qualitative research on second-hand data
C.
Quantitative study of first-hand data
D.
Quantitative study of second-hand data
【简答题】根据国家制订的《建筑统一模数制》,我国采用的基本模数M=____mm。
【多选题】In a research,data are always collected for the following purposes:
A.
To formulate research questions
B.
To test hypotheses
C.
Answer research questions
D.
To decide research methods
【简答题】海明码结构为 海明码结构为I4 I3 I2 P3 I1 P2 P1 ,假设接收到的海明码最多有一位错误,当接收到的海明码为 1101101 时,若采用偶校验原则,则其接收到的正确的信息I4 I3 I2 I1 为( )
【简答题】The scientists resorted to the following data sources in the research EXCEPT [A] radiation of the ancient lake water. [B] radiation detected in the sand. [C] the fluctuation of ocean levels. [D] appea...
【单选题】Data originated by the researcher specifically to address the research problem are called ________.
A.
primary data
B.
secondary data
C.
virtual data
D.
census data
E.
research data
【简答题】海明码结构为 海明码结构为I4 I3 I2 P3 I1 P2 P1 ,假设接收到的海明码最多有一位错误,当接收到的海明码为 1111111 时,若采用奇校验原则,则其接收到的正确的信息I4 I3 I2 I1 为( )
【单选题】...a research plan,which become a guide for collecting data,analyzing data...对research plan做解释的是
A.
a guide for
B.
collecting data
C.
analyzing data
D.
reporting data
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