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ACS is one of the world’s largest scientific societies and the premier home of chemistry profes……

MathType是一款专业的数学公式编辑器，兼容Office word,excel等700多种程序，用于编辑数学试卷、书籍、报刊、论文、幻灯演示等文档轻松输入各种复杂的数学公式和符号。

Diodes Incorporated is a leading global manufacturer and supplier of high-quality application s……

快代理创立于2013年，专注代理服务器领域，为企业和开发者提供高品质的HTTP代理IP云服务，每天代理IP超15万个，提供完备的API接口和SDK，赋能于大规模数据采集。

At Microsoft our mission and values are to help people and businesses throughout the world real……

The ACT test is a curriculum-based education and career planning tool for high school students ……

Alibaba Cloud is one of the world's largest cloud computing companies, providing scalable, secu……

在国家体育总局支持下，北京华奥星空科技发展有限公司于2003年由中国奥委会、中华全国体育总会共同成立。华奥星空整合国内外体育信息资源、开发运营各类体育网站、提供图文视频等全方位的体育资讯、承……

UNICEF works in more than 190 countries and territories to reach the most disadvantaged childre……

Online shopping for the latest electronics, fashion, phone accessories, computer electronics, t……