请您在以下相应的行业类别打勾，如有需要可选择多个项目。
Please tick the boxes below to indicate your industry activity. You can tick more than one box if required.
总的说来，债务期限9.53%的变异能由行业类别加以解释，4.15%的变异能由地区虚拟变量加以解释。
In general, 9.53% of the variance in debt maturity can be explained by industrial classification, and 4.15% of the variance by area dummy variables.
运用文献资料、专家访谈等研究方法，归纳了F1赞助商的行业类别，据此提出赞助商的行业类别与F1赛事的关联度。
By the ways of literature study and expert interview, the article sums up the categories of the F1 sponsors and their correlation to the event.
运用文献资料、专家访谈等研究方法，归纳了F1赞助商的行业类别，据此提出赞助商的行业类别与F1赛事的关联度。
By the ways of literature study and expert interview, the article sums up the categories of the F1 sponsors and their correlation to the event.
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