• 2022-06-07
    Instrument relevance can be easily tested in practice.
    A: 正确
    B: 错误
  • A

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      5. There is a tight connection between theory and practice that all theories ________ from practice and in return serve practice.

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      You can’t use the machine because it __________________ (not test) yet. A: has not been tested B: was tested C: has tested

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      A questionnaire is a research instrument consisting of a series of questions for gathering information from anyone the researcher can find. A: 正确 B: 错误

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      Theory is based on practice, ______ in turn serves practice. A: that B: what C: who D: which

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      Only after the students have mastered the rules of pronunciation ______. A: can they memorize words more easily B: when can they memorize words mere easily C: then they can memorize words more easily D: when they can memorize words more easily