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本文译自经济合作与发展组织出版的1986年《发展合作评论》一书。这里发表的是译文的第一部分,其余部分将由本刊陆续刊载。
This article is translated from the 1986 Development Cooperation Review, published by the Organization for Economic Co-operation and Development. Published here is the first part of the translation, the rest will be published by the magazine.