• HobbySpace

    HobbySpace

    Hobby Space是一个让每个人都可以以某种方式参与太空探索和开发的网站。网站鼓励空间爱好者一起参与观察和拍摄轨道飞行器，高空火箭飞行，以及业余和学生纳米卫星项目等。www.hobbyspace.com

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  • Spaceflight Now

    Spaceflight Now

    Spaceflight Now是一个在线提供空间新闻的主要来源网站。spaceflightnow.com

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  • SpaceX

    SpaceX

    SpaceX designs, manufactures and launches advanced rockets and spacecraft. The company was founded in 2002 to revolutionize space technology, with the ultimate goal of enabling people to live on other planets.www.spacex.com

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  • Space News From SpaceDaily.Com

    Space News From SpaceDaily.Com

    Space News from SpaceDaily.Com brings the space industry professional daily news from the frontier, with contract, bid, launch and on-orbit satellite news as it happens.www.spacedaily.com/

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  • SPIE

    SPIE

    SPIE - the international society for optics and photonics www.spie.org

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  • 中生网

    中生网

    中生网提供生物实验、生物软件、生物网站、生物医药、健康常识、实验仪器、临床检验等相关的技术知识,SPSS,Origin,Endnote,Eviews,SAS,dnastar,Chemdraw,quantity one,DNAMAN,noteexpress,Vector NTI,stata,DPS等行业软件免费下载。www.seekbio.com

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  • The Daily Caller

    The Daily Caller

    The Daily Caller is a 24-hour news publication providing its audience with original reporting, thought-provoking commentary and breaking news.dailycaller.com The Daily Caller | The Daily Caller features breaking news, opinion, research, and entertainment 24 hours a day.

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  • Shanghai Metals Market

    Shanghai Metals Market

    Metal Prices,China Copper,aluminum,lead,zinc,nickel,tin historical prices and chart,Steel PMI and Iron ore Export and Import prices all in Shanghai Metals Market(SMM).Metal Prices,Current Copper,Aluminum,Lead,Zinc,Nickel,Tin Prices and Report,Steel PMI and Iron ore historical prices charts - Shanghai Metals Market

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  • Talkenglish

    Talkenglish

    Learn English Speaking and Improve your Spoken English with Free English Speaking Lessons Online! Learn English Speaking Online to improve your Spoken English.  Speak English fluently with Free Spoken English lessons using over 10,000 free audio files!www.talkenglish.com

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  • 亦鸥网

    亦鸥网

    亦鸥是目前唯一一个最全的托福口语、雅思口语真题素材库，题目包括了托福口语和雅思口语历年真题、托福口语黄金80题、TPO、口语真经，另外亦鸥还收集了最新的托福机经预测和雅思重点题目，考生在这里几乎可以享受到口语的一站式练习，并且还能将此的答题录音分享出与大家一起点评交流，达到互相提高的目的。同时亦鸥还提供了电脑版托福口语软件和iPhone版托福口语App。www.yeeaoo.com

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