Chinese and Pakistani air force personnel sit in a Pakistani fighter after a joint drill in China, Sept 14, 2017...
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Each year, analysts at Clarivate Analytics mine millions of citations in the Web of Science, an online subscription-based scientific citation indexing service, to identify top-tier researchers in physiology or medicine, physics, chemistry and economics...
随笔杂谈
2024-07-08 19:00:58
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