提及了任何费用试验的比例，按照基金背景的不同而增加，企业背景资助的试验中18%提及，混合资助的试验中31%提及，非盈利性组织资助的试验中36%提及。

Trials with any mention of costs increased across the funding sources from 18% for industry-backed trials to 31% for those with mixed funding and 36% for studies funded by non-profit organisations.

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盈利能力、流通股比例与企业资产负债率显著负相关；

There is an obvious negative correlation between profitability, proportion of circulating share and asset-liability ratio;

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