自然中多样化千姿百态从来是生态健康的指标。人为单一化违背天理，遭自然惩罚必定产生灾难。不光历史如此，植物，动物界也是

来源: 绝对匿名于 2025-12-10 22:21:49 [旧帖] [给我悄悄话] 本文已被阅读：次

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