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  • 猿辅导网

    猿辅导网

    「猿辅导,孩子喜欢老师好,在线辅导更有效」为全国小学、初中、高中各年级学生,提供覆盖英语、语文、数学等全科的在线视频直播课程。全面突破中考、高考重点难点,清华、北大名师领衔授课,进步提分看得见。www.yuanfudao.com

    点击进入 - 2017-09-24 - 收藏
  • 小猿搜题官方网站

    小猿搜题官方网站

    小猿搜题 - 中小学拍照搜题利器www.yuansouti.com完全免费的学习利器!用拍照搜题的方式解决中小学作业难题。

    点击进入 - 2017-09-24 - 收藏
  • Astronomy Magazine

    Astronomy Magazine

    Astronomy.com is for anyone who wants to learn more about astronomy events, cosmology, planets, galaxies, asteroids, astrophotography, the Big Bang, black holes, comets, constellations, eclipses, exoplanets, nebulae, meteors, quasars, observing, telescopes, NASA, Hubble, space missions, stargazing, and more

    点击进入 - 2017-09-12 - 收藏
  • Sky Telescope

    Sky Telescope

    Sky & Tel covers the latest night-sky events, astronomy news, astrophotography and observing tips. Also browse our video & podcast guides to tonight's sky.www.skyandtelescope.co 天空和望远镜(Sky & Telescope)是一份涵盖业余天文学各个方面的美国月刊。网站提供最新夜空事件,天文新闻,天文摄影和观察技巧。

    点击进入 - 2017-09-12 - 收藏
  • 天文网

    天文网

    天文网是为天文爱好者提供全面的宇宙天体、航天探索、天文观测摄影等天文知识,最新最全的星空图片、天文视频,及UFO、外星人等未知文明和生命的揭秘,致力于做中国最... www.tianwenwang.cn

    点击进入 - 2017-09-12 - 收藏
  • Canadian Association of Physicists

    Canadian Association of Physicists

    Canadian Association of Physicists www.cap.ca Canadian Association of Physicists - Supporting Physics Research and Education in Canadian since 1965

    点击进入 - 2017-09-12 - 收藏
  • the American Center for Physics

    the American Center for Physics

    the American Center for Physics www.acp.org About the American Center for Physics The American Center for Physics brings three Societies together in one building: the American Institute of Physics (AIP) the American Physical Society (APS) the American Association of Physics Teachers (AAPT) The wooded 24-acre site off Kenilworth Avenue in College Park, Maryland, was purchased in the summer of 1992, with occupancy of the building starting in the fall of 1993. The site is ideally situated in close proximity to both Washington DC and the University of Maryland, one of the nation\'s leading research universities and home to strong physics and engineering departments, with easy access to public transportation. Designed by Skidmore, Owings & Merrill, the ACP building was envisioned to be a true center and showcase for physics. Special care was taken with the design of the building and the quality of materials used. To foster a sense of community, the entire ground floor is dedicated to common usage with shared meeting spaces, a cafeteria, and a central rotunda featuring vitrines for art exhibitions.

    点击进入 - 2017-09-12 - 收藏
  • American Nuclear Society

    American Nuclear Society

    The premier professional society serving the nuclear industry. Online offerings include meeting information, nuclear news, publications, member services, a career center, public information, and many other resources.www.ans.org

    点击进入 - 2017-09-12 - 收藏
  • ENS - European Nuclear Society

    ENS - European Nuclear Society

    Welcome to ENS - European Nuclear Society www.euronuclear.org ENS, European Nuclear Society, Pime, RRFM, Pime 2011, RRFM 2011, Topseal, TopNux, TopFuel, e-bulletin, e-news, Nuclear Glossary, Nuclear Diary, Marion Br?glinghaus, Marion Bruenglinghaus, Kirsten Epskamp

    点击进入 - 2017-09-12 - 收藏
  • European Optical Society

    European Optical Society

    European Optical Society www.europeanopticalsociety.org Annuities & Structured Settlements in Europe - European Optical Society

    点击进入 - 2017-09-12 - 收藏