法令 发表于 2025-3-21 18:23:53

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Lobotomy 发表于 2025-3-21 22:03:04

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侵害 发表于 2025-3-22 03:38:33

Cost Estimates as Predictors of Actual Costs: A Statistical Study of Military Developments,. Sometimes the actual costs of major military hardware articles (aircraft, missiles, and so on) have been five or ten times the estimated amounts. Early estimates, made near the beginning of a development program, have been particularly unreliable.

其他 发表于 2025-3-22 05:21:06

Toward a Normative Theory of Development,f development with some rigor under precise assumptions about the developer’s goals and the manner in which he acquires knowledge as development proceeds. Such a theory will, of course, have to deal with models that omit many important elements of development as it occurs in the real world. The mode

延期 发表于 2025-3-22 11:51:21

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Pde5-Inhibitors 发表于 2025-3-22 13:56:16

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运动性 发表于 2025-3-22 17:52:27

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CLAP 发表于 2025-3-22 22:54:36

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Hiatus 发表于 2025-3-23 05:16:05

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nascent 发表于 2025-3-23 08:11:46

Strategy for R&D: Studies in the Microeconomics of Development978-3-662-40413-3Series ISSN 0078-3390
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查看完整版本: Titlebook: Strategy for R&D: Studies in the Microeconomics of Development; Thomas Marschak,Thomas K. Glennan,Robert Summers Book 1967 Springer-Verlag