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[VOA慢速-时事新闻] VOA慢速英语(翻译+字幕+讲解):蓝鲸为何体型庞大?气候变化是祸首
300万年看似时间很长,不过跟地球45亿年的年龄比起来,可谓是大巫见小巫了。2017-05-25 编辑:clover
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[科学美国人科学系列] 科学美国人60秒:鲸鱼在失去牙齿后进化出鲸须
须鲸是海洋中温和的庞然大物。它们虽然体型庞大,但却以磷虾和浮游动物等微小生物为食。2019-03-01 编辑:aimee
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
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2017-05-25 编辑:clover
2019-03-01 编辑:aimee