間接指標，都很難引申。比如中國進口大豆連創記錄。大豆榨油，用於烹調。豆粕養豬，都與人口數量直接相關。

來源: thore 於 2025-12-02 09:51:44 [舊帖] [給我悄悄話] 本文已被閱讀：次

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