THE ANNUAL world-leading course in interventional cardiology, EuroPCR, welcomed 12,147 participants to Paris, France, for a dynamic ...
Abstract: Aiming at the issue that most of the existing knowledge graph-based methods for personalized learning resource recommendations do not take full advantage of collaborative signals from ...
Abstract: Due to their high flexibility and strong maneuverability, unmanned aerial vehicles (UAVs) have attracted lots of attention and are widely employed in many fields. Especially in target ...
Learn everyday expressions and idioms in 'The English We Speak'. test yourself with 'Phrase Frenzy', and learn more about English idioms in 'We Say - You Say' and 'This is Where'.
Check and improve your grammar with our basic grammar reference guide. On this page you'll find links to our basic grammar summary pages. Each basic grammar reference page covers a key grammar point ...
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