• Uses methods and so on questionnaire, on-the-spot investigation, literature material conducts the investigation and study to the Yangchow urban district fitness profession.

    采用调查问卷实地考察文献资料方法扬州市区的健身行业进行调查研究

    youdao

  • Uses methods and so on questionnaire, on-the-spot investigation, literature material conducts the investigation and study to the Yangchow urban district fitness profession.

    采用调查问卷实地考察文献资料方法扬州市区的健身行业进行调查研究

    youdao

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