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[2014年8月VOA常速英语] VOA常速英语(翻译+字幕+讲解):科学家们揭开鸟类成群奥秘
华威大学的科学家小组表示这是因为鸟类的本能需要保持最佳的群体密集性,为了能够看穿而且观察捕食者,同时保持鸟群的整体性2014-08-26 编辑:mike
Severity: Notice
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Filename: libraries/Cache_file.php
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Severity: Warning
Message: Memcache::connect(): Can't connect to 127.0.0.1:11211, Connection refused (111)
Filename: libraries/Cache_file.php
Line Number: 28
2014-08-26 编辑:mike