保全
发表于 2025-3-25 04:26:31
Economics of Agricultural Research and Biotechnology,es in the 1950s (Griliches, 1957, 1958) and cross-country comparisons by Ruttan and colleagues beginning in the 1970s (Ruttan, 1982; Hayami and Ruttan, 1985; Binswanger and Ruttan, 1978). These and subsequent studies have shown social returns to public investment in agricultural research of over 100
engender
发表于 2025-3-25 08:36:23
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BAN
发表于 2025-3-25 12:50:58
Less Favoured Areas and Rural Decline,y one of a larger and more complex set of issues concerning the rural economy in areas with a disadvantaged economic base. With a specific focus on the role of agriculture, this chapter discusses some of these issues from an economic viewpoint under a number of headings: definitions, classifications
间谍活动
发表于 2025-3-25 16:18:59
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unstable-angina
发表于 2025-3-25 22:50:34
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anagen
发表于 2025-3-26 01:52:50
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通便
发表于 2025-3-26 07:57:34
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chalice
发表于 2025-3-26 11:26:01
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ARY
发表于 2025-3-26 13:12:34
Transformation of Agriculture in Central-Eastern Europe and the Soviet Union: Major Policy Issues aoubt that all these changes will fundamentally reshape agriculture as a whole in the respective countries and will influence the behaviour and role of the region in the system of international agrarian relations. This study was written to survey the problems of Bulgaria, Hungary, the former GDR, Pol
Proclaim
发表于 2025-3-26 18:21:02
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