钱有四篇雄文，有一篇说＂根据光合作用的理论推算，稻麦年亩产可以达到4万斤至6万斤＂

来源: 三里半于 2024-11-17 18:23:33 [博客] [旧帖] [给我悄悄话] 本文已被阅读：次

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