百科全书在线 | Britannica
Explore the fact-checked online encyclopedia from Encyclopaedia Britannica with hundreds of thousands of objective articles, biographies, videos, and images from experts.由私人机构大英百科全书出版社所出版的英语百科全书，被认为是当今世界上最知名、最具权威的百科全书，是英语世界俗称的ABC百科全书之一。
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Chiphell - 分享与交流用户体验Chiphell,CHH,硬件,AMD,ATI,Nvidia,ASUS,SilverStone,LIAN LI,Antec,Thermalright,Abee,银欣,软件,硬件,安钛克,华硕,技嘉,罗技,Intel,高端,玩硬件,猫头鹰,联力,交易,二手,乌鸦,RV03,FT03,TJ11,X2000,X900,U2311H,P183,HR-02,GTX 480,HD5870,ROG,Ares
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Wolfram|Alpha
Wolfram|Alpha brings expert-level knowledge and capabilities to the broadest possible range of people—spanning all professions and education levels.与其他搜索引擎不同，WolframAlpha其实是一个计算知识引擎，它真正的创新之处在于能够马上理解问题，并给出答案。它可以进行各种算术，还有数据分析，物理，艺术等等各个行业的查询。
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MediaPost Publications
MediaPost Publications is an on-line publishing resource for all advertising media professionals - TV, cable, radio, print, interactive, agencies, buyers, and reps - providing news, articles and commentary.
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Public Domain Images
100% free Public Domain Images New free stock photos added weekly No attribution required. Images released under CC0 1.0 Universal Public Domain Dedication.
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MediaFire官网
MediaFire is a simple to use free service that lets you put all your photos, documents, music, and video in a single place so you can access them anywhere and share them everywhere.
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