| 摘 要： | The historical experience of industrialization in some countries hasdemonstrated that given certain conditions in relation to resources, suchas a low average area of cultivated land per capita, economic growth andstructural transformation will result in the decline of the comparativesuperiority of grain production. When this process advances to a criticallevel, the selection of a grain policy becomes a question of whether or notto support the continued growth of the national economy by increasi…
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