结果分析： 由上表可知，其中城市 2，8，9，10 达到了 dea 强有效（松弛变量均为 0），这说明达到了资源充分利用，是一种帕累托最优的状态。 其余决策单元非 dea 有效，需要减少投入. Dea 模型具体又可细分为三种类型： (1) ccr 模型：该模型假定 规模报酬不变，主要用来测量技术效率;
Al Sharpton's Secret Work As FBI Informant The Smoking Gun
Editor's Choice
- 7 Freezenova Games You Absolutely Need To Play Before 2025. Android Adventure On Pc & Mac Free Bluestacks
- **the Million-dollar Question: Is There A Monica Lewinsky Husband Hiding In Plain Sight?** Bill Clton Monic Ptg
- The Skylar Blue Effect: How One Person Is Reshaping Pop Culture Across The Us. Dcover Art Onlyfans And More
- **exclusive: River Russell Deary Finally Reveals His Biggest Challenge Yet.** Keri & Canada Couple Photo 2442493 Celebrity
- The Truth About Tom Burke's Wife That Everyone Missed. A Deep Dive Into His Personal Life And Relationships
