With the methods of documentation, investigation and interview, this article studies the developing trend and social foundation of roller skating.

运用文献资料、调查访问等研究方法，对轮滑运动的发展趋势和社会基础等方面进行理论阐述。

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By using the methods of questionnaire, statistics and documentation, this paper studies the attitude, interest and the physical exercises of weak group at colleges.

采用问卷调查法、数理统计法和文献资料法，对大学生体育弱势群体的体育态度、兴趣以及体育锻炼行为进行了调查与分析。

youdao

Using the methods of documentation, investigation and statistics, the paper analyzes and studies the factors affecting CVA patronage and marketing.

采用文献资料、问卷调查、数理统计法，对影响全国排球联赛赞助营销的因素进行分析研究。

youdao

The microneedle vaccines could be self-administered, but we need to await the outcome of human clinical trials and successful filing of all the clinical documentation (safety studies, and results of vaccine effectiveness) to the national regulatory authorities, who will decide who can administer this type of vaccine.

FORBES: A 'Needleless' Vaccination Even Mothers Will Love!

To achieve its objectives, the Chair undertakes an integrated system of research, training, information and documentation activities in the field of women and gender studies.

UNESCO: CYPRUS NATIONAL COMMISSION FOR UNESCO - UNESCO Chair at the University of Cyprus - ��Gender Equality and Women��s Empowerment��

The purpose of the UNESCO Chair is to promote an integrated system of research, education, training, capacity building, information and documentation in the field of African peace and conflict studies.

UNESCO: Purpose/Objectives of the Chair/UNITWIN Network