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[科技] VOA视频:生物学家建立北美蜜蜂图像陈列馆
蜜蜂在北美的“殖民地”的瓦解至今仍是个未解之谜,美国地质调查局的以为生物学家正试图保护数千种能够传播花粉的昆虫的记忆,其中的一些昆虫已经灭绝。本台记者乔治·卜提科带来更多报道。2014-03-21 编辑:Andersen
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2014-03-21 编辑:Andersen