听写 发表于 2025-3-28 15:52:24
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D. M. Bushnell,G. C. Greenef the need to guard nature’s treasures and the “balance of nature.” Only in the last two decades have serious efforts been directed to developing the theoretical basis we need to manage natural systems from a sound ecological basis.射手座 发表于 2025-3-29 00:40:51
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http://reply.papertrans.cn/43/4265/426489/426489_44.pngMalfunction 发表于 2025-3-29 08:01:55
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Pierce L. Lawingments, of current theoretical research, and of directions of environmental risk assessment of chemical stress on populations. Fate and effects at the community and ecosystem level are, at this stage, only speculative.条街道往前推 发表于 2025-3-30 01:06:56
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