诽谤
发表于 2025-3-27 00:51:11
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Pantry
发表于 2025-3-27 04:05:37
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大量杀死
发表于 2025-3-27 06:01:46
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cognizant
发表于 2025-3-27 10:09:01
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修饰语
发表于 2025-3-27 16:00:37
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教义
发表于 2025-3-27 19:21:53
put or output factors may not be directly flexible or adjustable due to the indivisible nature or inertia in some input or output factors. Usually, the original DEA model and the DFM model do not allow for such a non-controllable or a fixed input factor. Therefore, we need a method that may take int