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[NEWS Plus慢速英语] NEWS Plus慢速英语:美国新一代中继通信卫星成功发射
美国国家航空航天局的成功通讯卫星系统继续不断扩大。1月23日,一架无人火箭携带最新的第3代“跟踪与数据中继卫星”升入寒冷又晴朗的夜空。2015-02-28 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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2015-02-28 编辑:Aimee