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ScienceChina建立于2002年，是中国科学院知识创新工程——国家科学数字图书馆资助项目之一。她集成了中国科学院文献情报机构所创建的、具有一定影响力的中国科学引文数据库、现期目次数据……

Ubuntu is the modern, open source operating system on Linux for the enterprise server, desktop,……

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Oracle offers a comprehensive and fully integrated stack of cloud applications and platform ser……

USDT是Tether公司推出的基于稳定价值货币美元（USD）的代币Tether USD（下称USDT），1USDT=1美元，用户可以随时使用USDT与USD进行1:1兑换。Tether公司……

Ring of Elysium is a free to play, Battle Royale style pc game on Steam. Survivors must stay ah……