Thirdly, we analyze the investing principle of VC's company in the light of various fund background.

第三、针对不同资金背景创业投资公司的优势，阐述了它们各自的投入原则，并结合案例进行实证分析。

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"But as far as investing taxpayer dollars and making a strong public policy effort, we think the principle focus should be on encouraging abstinence, " he said.

CNN: Gaps found in young people's sex knowledge