-
Science/AAAS | Scientific research, news and career information
Science/AAAS | Scientific research, news and career information...
-
National Geographic - Inspiring People to Care About the Planet Since 1888
National Geographic provides free maps, photos, videos and daily news stories, as well as articles and features about animals, the environment, cultures, history, world music, and travel....
-
Asia Edition - Wall Street Journal - Latest News, Breaking Stories, Top Headlines - WSJ.com
WSJ coverage of today's breaking news and headlines from Asia. Top stories, photos, videos and detailed news analysis and reporting....
-
The Associated Press | The essential global news network
The Associated Press | The essential global news network...
-
AOL.com - Welcome to AOL
The new AOL.com brings the Web to you. Get access to email from AOL Mail, AIM Mail, Yahoo Mail and Gmail all in one place. Stay up to date with your social networks including AIM, Bebo, Twitter, Facebook and MySpace; and send updates to all of your networks at once with just a click. Add bookmarks and feeds from your favorite sites and check your local weather and news in a flash....
-
Amazon.com: Online Shopping for Electronics, Apparel, Computers, Books, DVDs & more
Online shopping from the earth's biggest selection of books, magazines, music, DVDs, videos, electronics, computers, software, apparel & accessories, shoes, jewelry, tools & hardware, housewares, furniture, sporting goods, beauty & personal care, broadband & dsl, gourmet food & just about anything else....
-
21ic社区电子工程师的超级网上俱乐部让我们共同进步
21IC中国电子网成立于2000年初，是中国第一家电子技术门户网站，也是目前访问量最大、注册用户最多的电子技术信息网站。21IC的宗旨是向中国电子工程师提供最新电子技术和产品信息、应用设计思路、市场和行业动态、器件资料等工程师所需求的信息，同时也是工程师之间相互交流、学习和表达的友好社区。...
-
-
-
萍萍家园文献,代理,检索,专业,科研,学术,互助,sd,ezproxy,vpn
萍萍家园免费电子期刊文献,国外大学图书馆密码,免费电子书籍,免费文献下载,科研学术交流,专业学术资源,专业交流...
-
『无忧ppt』ppt免费下载，ppt模板，ppt素材，ppt背景，ppt图片，ppt模版，幻灯片母版，幻灯片模板，powerpoint模板，ppt制作免费下载的门户网站
免费下载，ppt，pps，powerpoint，ppt模板，ppt模版，ppt素材，ppt背景，ppt图片，powerpoint模版，powerpoint模板，幻灯片模板，幻灯片模版下载－无忧ppt...
-
wps2009下载_免费正版的办公软件_wpsoffice官方网站_办公软件学习和分享平台！
wpsoffice官方网站是金山公司旗下的办公软件学习和分享网站,wps2009是对个人永久免费的国产办公软件,提供wps2009下载,wps2009模板,插件下载以及wpsoffice帮助问答等服务,是中国最好的办公软件学习和分享平台...
