间接指标，都很难引申。比如中国进口大豆连创记录。大豆榨油，用于烹调。豆粕养猪，都与人口数量直接相关。

来源: thore 于 2025-12-02 09:51:44 [旧帖] [给我悄悄话] 本文已被阅读：次

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