碎石
发表于 2025-3-25 04:20:24
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capsaicin
发表于 2025-3-25 07:59:32
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ENNUI
发表于 2025-3-25 13:25:03
María J. Rodríguez,Luis Vázquezpe and globally in recent decades have generated widespread scientific and societal concern. It is particularly important to conserve healthy populations of pollinators in arable landscapes because of the ‘ecosystem service’ they provide to mass flowering crops such as field beans. Changes in land u
minimal
发表于 2025-3-25 17:32:12
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诱导
发表于 2025-3-25 22:08:50
Thomas I. Seidmanlarge areas of species-rich farmland. Changes in the weed flora in this region, with special regard to the disappearing weed species, is the subject of relatively small numbers of international scientific studies compared to the western part of Europe. The average weed species number per plot seems
客观
发表于 2025-3-26 03:16:27
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充气球
发表于 2025-3-26 07:00:29
Michael W. Smiley, the last decades have seen a dramatic decline in species richness and, in some cases the complete disappearance of arable plant communities. A multitude of comparative studies show that, in the field interiors, the total species number pooled over all samples has declined by approximately one thir
服从
发表于 2025-3-26 10:07:12
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暂时过来
发表于 2025-3-26 15:35:22
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使长胖
发表于 2025-3-26 19:51:23
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